bluuebunny/crossref_metadata_2025 huggingface dataset:
Dichloridobis(triphenylphosphine oxide)cobalt(II) methanol 0.125-solvate, a lamellar structure
Authors: Lancaster Richard , Pritchard Robin G.
Published: November 2007

The title methanol solvate, [CoCl2(C18H15OP)2]·0.125CH3OH, crystallized when a methanol solution of CoCl2(OPPh3)2, contained in a 0.7 mm diameter tube, was subjected to vapour diffusion using Et2O antisolvent but the more common unsolvated crystals formed when a 10 mm tube was used. The four crystallographically distinct CoCl2(OPPh3)2 molecules in the asymmetric unit of the title structure have similar configurations. In each case, one O—P bond projects into the region between the two Cl atoms [P—O—Co—Cl = 21.2 (8)–42.1 (8)°], and the other is directed away [P—O—Co—Cl = 110.9 (8)–147.4 (6)°]. The Cl—Co—Cl angles range from 116.4 (1) to 125.6 (1)° and O—Co—O from 104.3 (3) to 107.2 (2)°. The crystal studied was an inversion twin.
Poly[aqua(μ2-4,4′-bipyridyl-κ2
N:N′)(μ2-3-phosphonatobenzenesulfonato-κ2
O:O′)copper(II)]
Authors: Du Zi-Yi , Xie Yong-Rong , Wen He-Rui
Published: November 2007

The title polymer, [Cu(C6H5O6PS)(C10H8N2)(H2O)]
n
, was synthesized by a hydrothermal method. The CuII ion is five-coordinated by one phosphonate O atom, one sulfonate O atom, two N atoms of the bipyridyl ligand and one water molecule. The coordination geometry around the metal centre can be described as slightly distorted square-pyramidal. The CuII ions are connected by bidentate bridging phosphonato-benzenesulfonate ligands, forming one-dimensional helical chains along [010], which are further bridged by bidentate 4,4′-bipyridyl ligands, generating a two-dimensional layered crystal structure. The layered structure features an eight-membered ring including four CuII ions, two [O3S–C6H4–PO3H]2− anions and two 4,4′-bipyridyl ligands. Hydrogen bonds involving aqua ligands, phosphonate O and sulfonate O atoms are observed between the layers,
2,3-Dibromo-3-(5-bromo-2-methoxyphenyl)-1-(2,4-dichlorophenyl)propan-1-one
Authors: Narayana B. , Mayekar Anil N. , Yathirajan H. S. , Sarojini B. K. , Kubicki Maciej
Published: November 2007

In the title molecule, C16H11Br3Cl2O2, the chain Br atoms are in trans positions [Br—C—C—Br torsion angle is 179.0 (2)°]. The two benzene rings make a dihedral angle of 39.54 (15)°. The crystal packing is determined by van der Waals forces; some weak π–π interactions between the benzene rings of neighbouring molecules are also possible [the distance between their centroids is 3.753 (5) Å]. Intermolecular C—H...Br interactions are also present.
[N,N′-Bis(4-chlorobenzyl)propane-1,2-diamine]dichloridozinc(II)
Authors: Yang Shu-Ping , Han Li-Jun , Wang Da-Qi , Xia Hai-Tao
Published: November 2007

In the title complex, [ZnCl2(C17H20Cl2N2)], the ZnII atom is coordinated by two Cl atoms and two N atoms of the N,N′-bis(4-chlorobenzyl)propane-1,2-diamine ligand, and displays a tetrahedral coordination geometry. Two N—H...Cl hydrogen bonds link the molecules into a chain of R
2
2(8) rings.
1,2,3,4-Tetrahydroquinolin-7-amine
Authors: Yan Fan-Yong , Liu Dong-Qing , Cao Xiao-Hui , Yan Xi-Long , Wang Jin-Peng
Published: November 2007

The title compound, C9H12N2, crystallizes with two almost identical molecules in the asymmetric unit. The ring containing the N atom in the tetrahydroquinoline system adopts a half-chair conformation. The crystal structure is stabilized by intermolecular N—H...N and N—H...π hydrogen bonds.
(OC-6-13)-Bis(acetone)dihydridobis(tricyclohexylphosphine)iridium(III) tetrafluoridoborate acetone solvate
Authors: Dahlenburg Lutz , Menzel Ralf , Heinemann Frank W.
Published: November 2007

The title solvated salt, [Ir(H)2{P(C6H11)3}2{OC(CH3)2}2]BF4·(CH3)2CO, was obtained by the protonation of [Ir(H)5{P(C6H11)3}2] with HBF4 in acetone. The cation features OC-6-13 stereochemistry, with Ir—P = 2.3159 (6) and 2.3267 (6) Å, and Ir—O = 2.238 (1) and 2.276 (1) Å. The BF4
− anion shows threefold rotational disorder about a B—F bond, with site occupancies of 0.65, 0.25 and 0.10. While there are several intramolecular C—H...O and intermolecular C—H...F hydrogen-bonding interactions [C...O = 3.207 (3)–3.358 (3) Å, and C...F = 3.434 (3) and 3.441 (3) Å], the O atom of the acetone solvent molecule does not act as a C—H acceptor.
μ-Oxido-bis({4,4′-dibromo-2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato}manganese(III))
Authors: Liu Ying , Dou Jianmin , Niu Meiju , Zhang Xianxi
Published: November 2007

The title compound, [Mn2(C16H12Br2N2O2)2O], is an unusual dinuclear manganese(III) complex. Each MnIII ion has a distorted square-pyramidal coordination geometry. In the basal plane, the Mn atom is coordinated by two N atoms and two O atoms of the Schiff base ligand. The apical position is occupied by a bridging O2− ion, which links to the other MnIII ion in the complex; this bridging O atom lies on a twofold rotation axis.
Bis{2,2′-[ethane-1,2-diylbis(iminomethylene)]diphenolato-κ2
O,N,N′,O′}cerium(IV) chloroform solvate
Authors: Yang Shu-Ping , Han Li-Jun , Wang Da-Qi , Wang Bo
Published: November 2007

In the title compound, [Ce(C16H18N2O2)2]·CHCl3, the CeIV atom has an eight-coordinate geometry involving two tetradentate N,N′-(2-oxidobenzyl)ethane-1,2-diamine ligands. The asymmetric unit contains one molecule of the title complex and one chloroform molecule, linked by C—H...O and N—H...Cl hydrogen bonds. These neighbouring molecules are connected by two C—H...π interactions, and by N—H...Cl and C—H...Cl interactions, resulting in a three-dimensional network.
(E)-4-Chloro-2-[(2,3-dimethyl-5-oxo-1-phenyl-2,5-dihydro-1H-pyrazol-4-yl)iminomethyl]-6-methoxyphenyl 4-methylbenzenesulfonate acetonitrile solvate
Authors: Zhen Xiao-Li , Tian Xia , Li Zhen-Chao , Han Jian-Rong , Liu Shou-Xin
Published: November 2007

In the title compound, C26H24ClN3O5S·C2H3N, the o-vanillin group makes dihedral angles of 25.87 (4), 11.93 (3) and 72.05 (7)° with the pyrazolone, benzene and phenyl rings, respectively. The crystal structure is stabilized by weak intermolecular C—H...O interactions that link molecules into centrosymmetric dimers.
4-[(Z)-(2,5-Dimethylphenylamino)phenylmethylene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one
Authors: Ma Rui , Ma Rongming , Hou Yubang , Yong Xuejian , Bao Feng
Published: November 2007

There are two molecules in the asymmetric unit of the title compound, C25H23N3O, both of which are stabilized by an intramolecular N—H...O hydrogen bond. The dihedral angles between the pyrazole plane and the attached phenyl ring in the two molecules are 19.9 (2) and 17.7 (2)°.
1,3-Bis(2-pyridylaminomethyl)benzene
Authors: Zhu Li-Na , Gao Shan , Huo Li-Hua
Published: November 2007

The complete molecule of the title compound, C18H18N4, is generated by crystallographic twofold rotation symmetry, with two C atoms lying on the rotation axis. The pair of pyridyl rings form a dihedral angle of 78.4 (2)° and the dihedral angle between the pyridyl ring and the central benzene ring is 110.4 (2)°. The molecules are linked into a one-dimensional chain by N—H...N hydrogen bonds.
(E)-N′-[4-(2,4-Dichlorobenzyloxy)-3-methoxybenzylidene]-2-methoxybenzohydrazide sesquihydrate
Authors: Liu Shou-Xin , Tian Xia , Zhen Xiao-Li , Li Zhen-Chao , Han Jian-Rong
Published: November 2007

In the title compound, C23H20Cl2N2O4·1.5H2O, the vanillin group makes dihedral angles of 0.52 (14) and 81.22 (7)° with the benzohydrazide residue and the dichlorobenzene ring, respectively. An intramolecular N—H...O hydrogen bond helps to stabilize the molecular conformation, while intermolecular O—H...O and bifurcated O—H...(N,O) hydrogen bonds link the molecules, forming an infinite network. One of the water molecule sites is half-occupied.
Dimethyl [(5-ethoxycarbonyl-4-methyl-1,3-thiazol-2-ylamino)phenylmethyl]phosphonate
Authors: Xu Di-Fan , Liu Xiao-Kou , He Hong-Wu
Published: November 2007

In the structure of the title compound, C16H21N2O5PS, the P atom adopts a slightly distorted tetrahedral configuration. The crystal packing is stabilized by intramolecular C—H...N and C—H...O and intermolecular N—H...O hydrogen-bonding interactions.
catena-Poly[[bis(di-4-pyridylamine-κN)(terephthalato-κ2
O,O′)nickel(II)]-μ-di-4-pyridylamine-κ2
N:N′]
Authors: Braverman Maxwell A. , LaDuca Robert L.
Published: November 2007

In the title compound, [Ni(C8H4O4)(C10H9N3)3]
n
, an NiII atom with octahedral coordination is bound by one chelating terephthalate (tp) dianion, two monodentate di-4-pyridylamine (dpa) ligands, and two bridging dpa ligands. These link the Ni atoms into one-dimensional [Ni(tp)(dpa)3]
n
coordination polymer chains that propagate along the b-axis direction. Interweaving pairs of chains stack in three dimensions via N—H...O hydrogen bonding.
2,3,5′,6,6′,7-Hexamethoxy-3′H,10H-spiro[anthracene-9,1′-isobenzofuran]-3′,10-dione
Authors: Lutz Marlon R. , Zeller Matthias , Becker Daniel P.
Published: November 2007

The title molecule, C27H24O9, was formed via a transannular electrophilic addition of a putative cyclotriveratrylene triketone and is made up of an anthrone and an isobenzofuranone ring that are connected via one C atom to form a spiro compound. The anthracene and isobenzofuranone ring systems of the spiro compound are both essentially planar and perpendicular to each other, with an angle of 89.90 (2)° between them. The rigid molecule crystallizes with large voids of 598.7 Å3, or 21.5% of the unit-cell volume, that are partially filled with unmodelled disordered solvent molecules. The voids stretch as infinite channels along the [101] direction. The packing of the structure is partially stabilized by a range of weak C—H...O hydrogen bonds and also by C—H...π interactions. No significant π–π interactions are present in the crystal structure.
Aqua(2,2′-bipyridine-κ2
N,N′)bis(4-formylbenzoato-κ2
O,O′)cadmium(II) monohydrate
Authors: Deng Zhao-Peng , Gao Shan , Huo Li-Hua , Zhao Hui
Published: November 2007

In the mononuclear title compound, [Cd(C8H5O3)2(C10H8N2)(H2O)]·H2O, the Cd atom is O,O′-chelated by two 4-formylbenzoate monoanions and N,N′-chelated by 2,2′-bipyridine. It is also coordinated by a water molecule in a monocapped trigonal-prismatic geometry. The coordinated and solvent water molecules and O atoms of the monoanions engage in hydrogen bonding, resulting in a chain running along the b axis of the monoclinic unit cell.
3-Benzylidene-8-methoxy-6-(prop-1-enyl)chroman-4-one
Authors: Suresh R. , Kanagam Charles C. , Umarani P. R. , Manivannan V. , Büyükgüngör Orhan
Published: November 2007

In the title compound, C20H18O3, the phenyl ring makes a dihedral angle of 50.41 (10)° with the benzene ring of the chromanone unit. The molecular structure is stabilized by weak intramolecular C—H...O interactions and the crystal packing is stabilized by weak intermolecular C—H...O interactions.
2-(3-Methyl-5-thioxo-4,5-dihydro-1H-1,2,4-triazol-4-yl)acetic acid
Authors: Kruszynski Rafal , Trzesowska Agata , Przybycin Magdalena , Gil Kamil , Dobosz Maria
Published: November 2007

All interatomic distances in the title compound, C5H7N3O2S, are normal. The 1,2,4-triazoline ring is planar and it is inclined at 78.61 (7)° to the planar acetic acid group. The molecules of the title compound are connected via O—H...N hydrogen bonds into zigzag chains along the [101] direction and by N—H...S hydrogen bonds into a three-dimensional net. In addition, a weak C—H...O hydrogen bond can also be found in the structure.
Hexaaquachromium(II) bis(4-methylbenzenesulfonate)
Authors: Zhong H. , Yang X.-M. , Xie H.-L. , Luo C.-J.
Published: November 2007

The asymmetric unit of the title compound, [Cr(H2O)6](C7H7O3S)2, contains one half-cation and one anion; the Cr atom lies on an inversion centre. In the crystal structure, intermolecular O—H...O and O—H...S hydrogen bonds result in the formation of a supramolecular network; an intramolecular C—H...O hydrogen bond is also present.
Methyl 1-methyl-8-nitro-5-oxo-1,2,3,5-tetrahydroimidazo[1,2-a]pyridine-7-carboxylate
Authors: Wang Li , Li Hui
Published: November 2007

In the title compound, C10H11N3O5, the dihedral angle between the fused pyridine and imidazolidine ring planes is 4.88 (12)°. The crystal structure is stabilized by weak C—H...O intermolecular interactions.
Poly[(2,2-bipyridine)bis(μ4-naphthalene-1,4-dicarboxylato)dilead(II)]
Authors: Yin Yan-Bing , Yu Hai-Xia
Published: November 2007

In the title compound, [Pb2(C12H6O4)2(C10H8N2)]
n
, neighboring PbII atoms are linked by naphthalene-1,4-dicarboxylate (1,4-NDC) ligands to form a three-dimensional polymeric structure. One PbII atom is seven-coordinated by seven carboxylate O atoms from five 1,4-NDC ligands, while the other is eight-coordinated by six carboxylate O atoms from five 1,4-NDC ligands and two N atoms from one 2,2-bipyridine ligand. Aromatic π–π stacking between 2,2-bipyridine and 1,4-NDC ligands helps to establish the packing [minimum centroid–centroid separation 3.475 (6) Å].
[Bis(2-pyridylmethyl)amine]dichloridozinc(II) chloroform solvate
Authors: Kim Young-Inn , Lee You-Soon , Seo Hoe-Joo , Lee Jin-Young , Kang Sung Kwon
Published: November 2007

The Zn atom in the title complex, [ZnCl2(C12H13N3)]·CHCl3, adopts a distorted square-pyramidal geometry, being coordinated by three N atoms of the tridentate dipicolylamine ligand and two Cl atoms. Intermolecular N—H...Cl hydrogen-bonding interactions link the molecules into centrosymmetric dimers.
2,6-Dimethoxy-4-(5-oxo-2-phenyl-4,5-dihydro-1,3-oxazol-4-ylidenemethyl)phenyl acetate
Authors: Sun Yi-Feng , Wang Xin-Li , Li Ji-Kun , Zheng Ze-Bao , Wu Ren-Tao
Published: November 2007

The title compound, C20H17NO6, was synthesized by the reaction of syringaldehyde with hippuric acid. The molecule adopts a Z configuration about the central olefinic bond. The two benzene rings and the oxazolone ring are almost coplanar. The crystal structure is stabilized by weak intermolecular C—H...O hydrogen bonds.
4-[1-(4-Chlorophenyl)-3-oxobutylamino]benzoic acid
Authors: Narayana B. , Sunil K. , Sarojini B. K. , Yathirajan H. S. , Bolte Michael
Published: November 2007

Geometric parameters of the title compound, C17H16ClNO3, are in the usual ranges. The two aromatic rings are almost perpendicular, with a dihedral angle of 89.26 (5)°. The carboxyl group is coplanar with the aromatic ring to which it is attached [dihedral angle = 1.70 (17)°]. The packing involves inversion-symmetric dimers bridged via hydrogen bonding of the carboxyl groups. In addition, there is an N—H...O hydrogen bond between the amino group and the carbonyl O atom.
3-(2-Fluoroanilino)isobenzofuran-1(3H)-one
Authors: Odabaşoğlu Mustafa , Büyükgüngör Orhan
Published: November 2007

The crystal structure of the title compound, C14H10FNO2, is stabilized by N—H...O, two C—H...O and two C—H...F intermolecular hydrogen bonds. N—H...O, C—H...O and two C—H...F intermolecular hydrogen bonds generate a fused R
2
2(10)R
2
2(12)R
2
2(15)R
3
2(13) ring motif. In the crystal structure, molecules are linked into chains along the b axis by C—H...O hydrogen bonds. The dihedral angle between the phthalide group and the other benzene ring is 73.51 (5)°.
5-(4′-Methylbiphenyl-2-yl)-2-triphenylmethyl-2H-tetrazole
Authors: Wang Guo-Xi , Ye Heng-Yun
Published: November 2007

The title compound, C33H26N4, was synthesized in two steps from 2-phenylbenzonitrile. Geometric parameters are in the usual ranges. The tetrazole ring encloses dihedral angles of 45.76 (9), 71.44 (8) and 72.38 (6)° with the three phenyl rings of the triphenylmethyl group. The dihedral angle between the tetrazole ring and the benzene ring directly attached to it is 49.13 (8)° and the dihedral angle between the aromatic rings of the biphenyl group is 54.29 (8)°.
(Acetonitrile-κN)(3-amino-4-methylbenzenesulfonato-κN)aqua(triphenylphosphine-κP)silver(I) hemihydrate
Authors: Han Jia-Jun , Li Ning
Published: November 2007

The title compound, [Ag(C7H8NO3S)(C2H3N)(C18H15P)(H2O)]·0.5H2O, has a mononuclear structure in which the AgI ion is four-coordinated by the N atoms from a 3-amino-4-methylbenzenesulfonate anion and an acetonitrile molecule, one P atom from a triphenylphosphine ligand and one O atom from a water molecule, forming a distorted tetrahedral configuration. Molecules are linked into a ribbon-like structure along the a axis by O(water)—H...O hydrogen bonds involving the coordinated water molecule, and N—H...O hydrogen bonds. The uncoordinated water molecule is disordered across an inversion centre.
Bis[(1,3-benzothiazol-2-ylsulfanyl)acetato-κO]bis(imidazole-κN
3)copper(II)
Authors: Bian He-Dong , Huang Fu-Ping , Yu Qing , Liang Hong
Published: November 2007

In the title complex, [Cu(C9H6NO2S2)2(C3H4N2)2], the CuII atom, lying on an inversion centre, is coordinated by two O atoms and two N atoms in a geometry deviating slightly from square planar. Intermolecular hydrogen bonds link the complex molecules into a layer structure.
catena-Poly[[bis(O-isopropyl dithiocarbonato-κ2
S,S′)nickel(II)]-μ-1,2-di-4-pyridylethane-κ2
N:N′]
Authors: Hill Denise D. , Tiekink Edward R. T.
Published: November 2007

The Ni atom in the zigzag polymeric title complex, [Ni(C4H7OS2)2(C12H12N2)]
n
, is situated on a twofold axis and the bridging ligand situated about a centre of inversion. The structure features a distorted octahedral cis-NiN2S4 coordination geometry defined by two chelating O-isopropyl dithiocarbonate ligands and two N atoms derived from the bidentate bridging ligands.
(2,9-Dimethyl-1,10-phenanthroline-κ2
N,N′)bis(3-hydroxybenzoato-κ2
O,O′)manganese(II) 2,9-dimethyl-1,10-phenanthroline dihydrate
Authors: Xuan Xiao-peng , Zhao Pei-zheng , Zhang Shu-xia
Published: November 2007

In the title compound, [Mn(C7H5O3)2(C14H12N2)]·C14H12N2·2H2O, the MnII ion is coordinated by a bidentate 2,9-dimethyl-1,10-phenanthroline (dmphen) ligand and two bidentate 3-hydroxybenzoate anions in a distorted octahedral environment. The structure is stabilized by O—H...O and O—H...N hydrogen bonds involving water molecules, the 3-hydroxybenzoate ligands and the uncoordinated dmphen molecules to form a three-dimensional network.
4,4′-Diazenediyldiphthalic acid dihydrate
Authors: Wang Jun , Lu Lu , Bai Jian-Wei , Zhao Bao-Zhong
Published: November 2007

In the crystal structure of the title compound, C16H10N2O8·2H2O, the centrosymmetric organic molecules and water molecules interact by way of O—H...O hydrogen bonds.
(Z)-5-(3-Nitrobenzylidene)-1,3-thiazolidine-2,4-dione
Authors: Sun Hong-shun , He Wei , Xu Ye-ming , Tang Shi-gui , Guo Cheng
Published: November 2007

In the title compound, C10H6N2O4S, the benzene and thiazolidine rings are oriented at a dihedral angle of 8.8 (5)° to one another. In the crystal structure, intramolecular C—H...O and C—H...S hydrogen bonds are present; intermolecular N—H...O and C—H...O hydrogen bonds link the molecules into rows down the a axis.
Diethyl 3-methyl-5-(triphenylphosphoranyleneamino)thiophene-2,4-dicarboxylate
Authors: Jiao Yuan-Hong , Zhang Qian , Ng Seik Weng
Published: November 2007

The title iminophosphorane, C29H28NO4PS, a thiophene compound with the sterically crowded –N=P(C6H5)3 substituent in the α-position of the aromatic ring, features an N =P double bond of length 1.572 (3) Å. One of the phenyl rings is coplanar with the plane of the three ipso-C atoms, whereas the other two are approximately orthogonal.
(1E,2E)-1,2-Bis[(E)-3-phenylallylidene]hydrazine
Authors: Chen Xiao-Hua
Published: November 2007

The title compound [alternatively called (E)-3-phenylprop-2-enal azine], C18H16N2, was synthesized by the reaction of hydrocinnamaldehyde with hydrazine hydrate. The nearly planar molecule is centrosymmetric, with the mid-point of the N—N bond lying at an inversion center.
Tetrakis(μ-naphthalene-1-acetato)bis(naphthalene-1-acetato)bis(1,10-phenanthroline)samarium(III)terbium(III) N,N-dimethylformamide disolvate
Authors: Xia Hai-Tao , Liu Yu-Fen , Wang Da-Qi , Yang Shu-Ping
Published: November 2007

Molecules of the title complex, [SmTb(C12H9O2)6(C12H8N2)2]·2C3H7NO, are centrosymmetric with equal disorder of the Sm and Tb atoms. Each SmIII and TbIII ion is nine-coordinate. The Sm and Tb atoms have a distorted monocapped square-antiprismatic coordination geometry. The molecules are linked into a chain by C—H...O and C—H...π hydrogen bonds parallel to the a axis, and into a sheet by C—H...π hydrogen bonds parallel to the (100) plane. The combination of the chains and sheets generates a three-dimensional framework structure.
4-Chloro-N-(3,4-methylenedioxybenzyl)aniline
Authors: Yang Shu-Ping , Han Li-Jun , Wang Da-Qi , Xia Hai-Tao
Published: November 2007

Molecules of the title compound, C14H12ClNO2, are linked by one C—H...Cl hydrogen bond, forming a C(13) chain running parallel to the [010] direction; these chains are linked by further C—H...π and C—H...Cl hydrogen bonds, resulting in a three-dimensional network structure.
4-Bromo-N-(3,4-methylenedioxybenzyl)aniline
Authors: Yang Shu-Ping , Han Li-Jun , Wang Da-Qi , Xia Hai-Tao
Published: November 2007

In the title compound, C14H12BrNO2, the molecules are linked by one C—H...Br hydrogen bond, so forming a C(13) chain running parallel to the [010] direction, and these chains are linked by further C—H...π and C—H...Br hydrogen bonds, resulting in a three-dimensional network structure.
Tetrakis(pyridine-κN)bis(thiocyanato-κN)chromium(II)
Authors: Liu T. , Zhu J. Y.
Published: November 2007

In the molecule of the title complex, [Cr(NCS)2(C5H5N)4], the CrII atom is bonded in a distorted octahedral arrangement to two N atoms of two SCN− ligands and four N atoms of four pyridine ligands. The Cr atom is located on a centre of inversion. In the crystal structure, C—H...N hydrogen bonds result in the formation of a supramolecular network structure.
Azido{2-[(tri-2-pyridylmethyl)iminomethyl]phenolato}nickel(II)
Authors: Tian Lai-Jin , Yang Hong-Jun , Ni Zhong-Hai
Published: November 2007

The title compound, [Ni(C23H17N4O)(N3)], was obtained by the reaction of the Schiff base ligand 2-[(tri-2-pyridylmethyl)iminomethyl]phenol with sodium azide and nickel(II) perchlorate in methanol solution. The NiII atom is four-coordinated by the phenolate O, the imine N and a pyridine N atom of the Schiff base ligand, and by the terminal N atom of an azide ligand, forming a square-planar geometry. The other two pyridyl rings are oriented at an angle of 72.29 (11)° to each other.
N
2-[Bis(benzylsulfanyl)methylene]-2-methoxybenzohydrazide
Authors: Singh N. K. , Singh Mamata , Butcher Ray J.
Published: November 2007

The title compound, C23H22N2O2S2, was obtained from the reaction of potassium N′-(2-methoxybenzoyl)hydrazinecarbodithioate and benzyl chloride. Strong intramolecular N—H...O and N—H...S hydrogen bonds are observed. Weak intermolecular C—H...O interactions link molecules into a two-dimensional framework; C—H...π interactions are also observed.
2-Phenyl-2H-1,2,3-triazole-4-carboxylic acid
Authors: Zhang Ling-Yu , Tian Lai-Jin , Zhang Chang-Fa
Published: November 2007

In the title compound, C9H7N3O2, the dihedral angle between the triazole and phenyl ring planes is 4.72 (6)°. In the crystal structure, classical inversion dimers arise from O—H...O hydrogen bonds between carboxylic acid groups.
N′-(3,4-Dichlorobenzylidene)isonicotinohydrazide
Authors: Yin Zhi-gang , Guo Shu-ling , Qian Heng-yu , Feng Yu-li
Published: November 2007

The molecule of the title compound, C13H9Cl2N3O, is roughly planar, the largest deviation from the mean plane being 0.168 (1) Å at the N atom next to the carbonyl group. Molecules are linked by N—H...N hydrogen bonds to form a zigzag chain.
catena-Poly[[(4,7-diphenyl-1,10-phenanthroline)lead(II)]-μ-benzene-1,4-dicarboxylato]
Authors: Yin Yan-Bing , Yu Hai-Xia
Published: November 2007

In the title compound, [Pb(C8H4O4)(C24H16N2)]
n
, the benzene-1,4-dicarboxylate (1,4-BDC) dianions link the PbII atoms to form a chain structure. The PbII atom is coordinated by 4,7-diphenyl-1,10-phenanthroline (L) and is also bonded to four 1,4-BDC O atoms, resulting in a very distorted cis-PbN2O4 octahedron. There are two 1,4-BDC half-anions in the asymmetric unit, both completed by inversion. Aromatic π–π stacking between L ligands in adjacent chains results in a two-dimensional supramolecular layer structure [minimum centroid–centroid separation 3.464 (5) Å].
(±)-3-[2-(Methylsulfanyl)ethyl]-1-phenyl-2,3-dihydro-1H-naphtho[1,2-e][1,3]oxazine
Authors: Yin Zhi-Gang , Qian Heng-Yu , Chen Yu-Zhen , Feng Yu-Li
Published: November 2007

In the title compound, C21H21NOS, the oxazine ring is not planar and displays a half-chair conformation. The phenyl and naphthalene ring systems make a dihedral angle of 78.65 (7)°.
Diisopropyl terephthalate
Authors: Kaitner Branko , Stilinović Vladimir
Published: November 2007

The title compound, C14H18O4, comprises discrete centrosymmetric molecules. The crystal structure is stabilized by intermolecular contacts of the type C—H...O.
(μ3-Benzene-1,3,5-tricarboxylato)tris[aqua(N,N,N′,N′′,N′′-pentamethyldiethylenetriamine)nickel(II)] tris(perchlorate) 4.25-hydrate
Authors: Trávníček Zdeněk , Marek Jaromír , Čermáková Šárka
Published: November 2007

In the title complex, [Ni3(C9H3O6)(C9H23N3)3(H2O)3](ClO4)3·4.25H2O, the three NiII centres are bridged by a benzene-1,3,5-tricarboxylate(3−) anion (btc). Each of the metal centres is coordinated by three N atoms of a tridentate N,N,N′,N′′,N′′-pentamethyldiethylenetriamine ligand (pmdien), two O atoms of the btc ligand and one water molecule in a distorted octahedral geometry. The secondary structure is stabilized by a variety of O—H...O hydrogen bonds and C—H...O interactions that serve to connect the complex cations, perchlorate anions and water solvent molecules. Variability of intermolecular contacts stabilizing the crystal structure leads to disorder of part of O atoms of two perchlorate anions between two positions with occupancies 0.632 (5) and 0.337 (7).
3-(1H-Benzimidazol-2-ylsulfanyl)propan-1-ol
Authors: Kakou-Yao Rita , Abou Akoun , Adjou Ané , Bany Guy Euloge , Ebby N'Dédé
Published: November 2007

Molecules of the title compound, C10H12N2OS, are interconnected by N—H...O hydrogen bonds of moderate strength into infinite chains. There are also intramolecular O—H...N bonds of moderate length. Weaker interactions are represented by C—H...N bonds as well as by π–π interactions between the imidazole and benzene rings [distance between centroids = 3.6865 (8) Å].
catena-Poly[[[(pyrazino[2,3-f][1,10]phenanthroline)copper(II)]-μ-4,4′-oxydibenzoato] monohydrate]
Authors: Liu Chun-Bo , Liu Yang , Lu Lu , Sun Jun
Published: November 2007

In the title compound, {[Cu(C14H8O5)(C14H8N4)]·H2O}
n
, the CuII atom adopts a distorted cis-CuN2O2 square-planar coordination geometry. 4,4′-Oxydibenzoate (L) ligands link the CuII atoms, generating a helical chain. Neighbouring chains are linked through π–π interactions between pyrazino[2,3-f][1,10]phenanthroline ligands with a centroid–centroid distance of ca 3.44 Å, resulting in a two-dimensional supramolecular structure. The structure is completed by O—H...O hydrogen bonds.
Dibromido{2-[(4-iodophenyl)iminomethyl]pyridine-κ2
N,N′}zinc(II)
Authors: Dehghanpour Saeed , Mahmoudi Ali , Khalaj Mehdi , Salmanpour Sadegh
Published: November 2007

The ZnII centre in the title compound, [ZnBr2(C12H9IN2)], is covalently bonded to two Br atoms and two N atoms of the diimine ligand in a distorted tetrahedral geometry.
5-[3-(Dimethylamino)propyl]-5H-dibenzo[a,d]cycloheptan-5-ol
Authors: Li Xiang , Chen Jun , Wang Dan , Han Feng , Yao Cheng
Published: November 2007

The title compound, C20H23NO, was synthesized by the reaction of dibenzo[a,d]cyclohepta-1,4,6-trien-5-one and dimethylaminopropylmagnesium. Intramolecular O—H...N hydrogen bonding causes the formation of a non-planar seven-membered ring. The benzene rings are oriented at a dihedral angle of 51.37 (3)°.
1,2,13,14,14a,15,16,17,18,18a-Decahydro-1,14-methano-4H,6H,8H-1,3,5-oxadiazino[3′,4′:3,3a]benzimidazo[1,7a-b][2,4]benzodiazepine-6,19-dione
Authors: She Nengfang , Xi Hailing
Published: November 2007

In the title compound, C18H20N4O3, a glycoluril derivative, the oxadiazinane six-membered ring displays a chair conformation and the bridgehead cyclohexane ring a boat conformation. In the crystal structure, intermolecular C—H...O hydrogen bonds may help to establish the packing.
Hexaaquamanganese(II) bis(4-methylbenzenesulfonate)
Authors: Zhong H. , Yang X.-M. , Xie H.-L. , Luo C.-J.
Published: November 2007

The asymmetric unit of the title compound, [Mn(H2O)6](C7H7O3S)2, contains one half-cation and one anion; the Mn atom lies on an inversion centre. In the crystal structure, intermolecular O—H...O and O—H...S hydrogen bonds result in the formation of a supramolecular network structure; an intramolecular C—H...O hydrogen bond is also present.
1,4-Dibenzyl-1,4-diazoniabicyclo[2.2.2]octane bis(trifluoromethanesulfonate)
Authors: Chen Chungang , Zhang Yan , Brad Korbanjhon
Published: November 2007

In the title compound, C20H26N2
2+·2CF3SO3
−, the dihedral angle between the phenyl rings of the dication is 9.4 (3)°. The –CF3 groups of both anions are disordered over two sets of positions in ratios of 0.920 (10):0.080 (10) and 0.76 (3):0.24 (3). In the crystal structure, C—H...O interactions link the molecules into columns.
Bis(μ-2-{[3-(dimethylamino)propyl]iminomethyl}phenolato-κ4
N,N′,O:O)bis[(acetato-κ2
O,O′)cadmium(II)] monohydrate
Authors: Cai Wen-Xuan , Zheng Xiao-Yong , Su Hong , Feng Yun-Long
Published: November 2007

In the crystal structure of the title compound, [Cd2(C12H17N2O)2(C2H3O2)2]·H2O, the binuclear complex molecule as well as the water molecule occupy special positions on the same twofold axis. The CdII atom has a severely distorted octahedral coordination formed by two deprotonated bridging phenol O atoms, the imine and amine N atoms of the Schiff base and two O atoms of the chelating acetate group. The water H atom takes part in a hydrogen bond involving one of the acetate O atoms as an acceptor. Each water molecule forms two such bonds, thus producing isolated 1:1 complex molecule–water aggregates in the crystal structure.
Bis[μ-2-(3-pyridyl)-1H-benzimidazole-κ2
N:N′]disilver(I) dinitrate
Authors: Xia Chang-Kun , Wu Wen , Chen Qiu-Yun , Xie Ji-Min
Published: November 2007

The title compound, [Ag2(C12H9N3)2](NO3)2, was prepared under hydrothermal conditions. The structure consists of binuclear complex cations and nitrate anions. The two AgI atoms, each in a geometry somewhat distorted from linear, are bridged by two 2-(3-pyridyl)benzimidazole ligands via pyridyl and imidazole N atoms, forming a centrosymmetric cyclic dimer. A three-dimensional network is constructed via N—H...O hydrogen bonds and weak Ag...O interactions [Ag...O = 2.686 (13)–2.847 (7) Å], as well as by offset π–π interactions between the pyridyl and imidazolyl rings with a nearest atom-to-atom distance of 3.40 (2) Å and a centroid-to-centroid distance of 4.06 (3) Å.
2,4-Dichloro-5-fluorobenzoic acid
Authors: Zhao Yun-Feng
Published: November 2007

In the title compound, C7H3Cl2FO2, the dihedral angle between the carboxyl group and the benzene ring is 49.27 (13)°. In the crystal structure, inversion dimers arise via pairs of weak O—H...O hydrogen bonds (H...O = 2.23 Å).
catena-Poly[[aqua(N,N-dimethylformamide-κO)strontium(II)]-bis[μ-2-(4-carboxyphenoxy)propionato-κ3
O,O′:O′]]
Authors: Kong Li-Li , Gao Shan , Huo Li-Hua , Ng Seik Weng
Published: November 2007

In the crystal structure of the polymeric title compound, [Sr(C10H9O5)2(C3H7NO)(H2O)]
n
, the SrII atom is O,O′-chelated by the carboxylate end of two 2-(4-carboxyphenoxy)propionate monoanions, and is coordinated by a water molecule and a dimethylformamide (DMF) molecule. It also interacts with the carboxylate O atom of two adjacent monoanions; these bonds give rise to a zigzag chain along the a axis. Meanwhile, the carboxyl –CO2H end of the anion interacts with an acceptor site [O...O = 2.629 (4) Å]; this interaction and hydrogen bonding involving the water molecule [O...O = 3.191 (5) Å] give rise to a three-dimensional network. The eight coordinating O atoms comprise an irregular polyhedron around the metal atom. The Sr atom, the water O atom, and the N and O atoms of the DMF molecule lie on a special position of site symmetry m; the DMF molecule is disordered about the mirror plane.
catena-Poly[[aqua(4,4′-bipyridine-κ2
N,N′)manganese(II)]-μ-3-(4-carboxylatophenoxy)propionato-κ3
O:O′,O′′]
Authors: Kong Li-Li , Gao Shan , Huo Li-Hua , Ng Seik Weng
Published: November 2007

In the crystal structure of the polymeric title compound, [Mn(C10H8N2)(C10H8O5)(H2O)]
n
, the MnII atom is O,O′-chelated by the aromatic carboxylate end of the 3-(4-carboxylatophenoxy)propionate dianion and is covalently bonded (through one O atom) by the aliphatic carboxylate end of another dianion; it is also coordinated by a water molecule. The compound adopts a helical chain structure that propagates along the c axis of the orthorhombic unit cell. The coordinated water molecule engages in both intrachain and interchain hydrogen bonding; the interchain hydrogen bonds result in a honeycomb motif. The compound crystallizes as a 0.36:0.64 inversion twin.
1-Ethyl-4,4,6,8-tetramethyl-2-tosyl-2,3,3a,4,6,7,8,9-octahydro-1H-pyrrolo[3,4-c]pyrano[6,5-d]pyrimidine-7,9-dione
Authors: Chinnakali K. , Sudha D. , Jayagopi M. , Raghunathan R. , Fun Hoong-Kun
Published: November 2007

The asymmetric unit of the title compound, C22H29N3O5S, contains two independent molecules, A and B, which differ slightly in the orientation of the ethyl and tosyl groups with respect to the attached pyrrolidine ring, as evidenced by the relevant torsion angles. In both molecules, the pyrrolidine and dihydropyran rings adopt envelope conformations, and are trans-fused. In molecule A, the tosyl group is equatorially attached to the pyrrolidine ring, whereas in B it is in a biaxial position. The pyrrolidine N atom exhibits sp
2 hybridization in molecule A and sp
3 hybridization in molecule B. In both molecules, the sulfonyl group has a distorted tetrahedral geometry. In the crystal structure, the molecules are linked into a three-dimensional framework by C—H...O hydrogen bonds.
Bis{4,4′-[(2,2′-bi-1H-imidazole-1,1′-diyl)dimethylene]dipyridinium} β-octamolybdate
Authors: Lan Ya-Qian , Qin Jun-Sheng , Su Zhong-Min
Published: November 2007

The title compound, (C18H18N6)2[Mo8O26], was produced by hydrothermal reaction of an acidified aqueous solution of Na2MoO4 and 1,1′-bis(pyridin-4-ylmethyl)-2,2′-bi-1H-imidazole (hereafter L). The structure consists of the β-octamolybdate anions having a crystallographic center of symmetry and protonated [H2
L]2+ cations. The [H2
L]2+ cations link β-octamolybdate anions, generating a two-dimensional hydrogen-bonded supramolecular sheet.
Ethyl (6-bromo-2-naphthyloxy)acetate
Authors: Sarojini B. K. , Narayana B. , Mayekar Anil N. , Yathirajan H. S. , Bolte Michael
Published: November 2007

The title compound, C14H13BrO3, is an intermediate in the preparation of naproxen, a non-steroidal anti-inflammatory drug (NSAID). Geometric parameters are in the usual ranges. Neglecting the H atoms, the molecule comprises two planar halves, the bromonaphthyl moiety (r.m.s. deviation = 0.010 Å) and the ethoxycarbonylmethoxy moiety (r.m.s. deviation = 0.018 Å). The dihedral angle between these is 79.23 (7)°. The crystal packing is stabilized by a weak C—H...O hydrogen bond.
(2E)-1-(2-Hydroxyphenyl)-3-[4-(methylsulfanyl)phenyl]prop-2-en-1-one
Authors: Sarojini B. K. , Yathirajan H. S. , Mustafa K. , Sarfraz H. , Bolte Michael
Published: November 2007

Geometric parameters of the title compound, C16H14O2S, a chalcone derivative, are in the usual ranges. The C=C double bond has a trans configuration. The essentially planar molecules (r.m.s. deviation for all non-H atoms = 0.034 Å) crystallize in planes parallel to the (\overline{1}40) plane. The molecular conformation is stabilized by an O—H...O hydrogen bond. The investigated crystal was a non-merohedral twin with a ratio of the twin components of 0.254 (1):0.746 (1).
3β,5α,15α-Trihydroxy-5-androsten-17-one dihydrate
Authors: Zhou Wei , Wang Guo-Hong , Hu Wei-Xiao , Xia Chun-Nian
Published: November 2007

In the steroid skeleton of the title compound, C19H28O4·2H2O, ring A assumes a slightly twisted chair conformation, ring C adopts a regular chair conformation, ring B adopts a half-chair conformation and ring D has a somewhat twisted envelope conformation. The crystal packing exhibits an extensive three-dimensional hydrogen-bonding network, formed by intermolecular O—H...O hydrogen bonds between the steroid and water molecules.
Tris(1,10-phenanthroline-5,6-dione-κ2
N,N′)copper(II) bis(perchlorate) 4.5-hydrate
Authors: Khalaji Aliakbar Dehno , Slawin Alexandra M. Z. , Woollins J. Derek
Published: November 2007

In the title compound, [Cu(C12H6N2O2)3](ClO4)2·4.5H2O, the CuII atom is in a distorted octahedral environment with unequal Cu—N distances, due to the Jahn–Teller elongation of the two Cu—N bonds in trans positions. The crystal studied was an inversion twin..
(E)-1-[4-(2,4-Dihydroxybenzylideneamino)phenyl]ethanone sesquihydrate
Authors: Özek Arzu , Albayrak Çiğdem , Odabaşoğlu Mustafa , Büyükgüngör Orhan
Published: November 2007

The asymmetric unit of the title compound, C15H13NO3·1.5H2O, consists of one ethanone molecule, one water molecule and one half-molecule of water. The organic molecule is a phenol–imine tautomer, as evidenced from C—O, C—N and C—C bond lengths and it is stabilized by an intramolecular O—H...N hydrogen bond which generates an S(6) ring motif. It is nearly planar, with a dihedral angle of 1.40 (10)° between the two aromatic rings. Molecules are linked by three intermolecular O—H...O hydrogen bonds, forming dimers, and are further linked by C—H...π interactions, forming a three-dimensional network.
4,4′-Methylenedianilinium 2,2′-dithiodibenzoate
Authors: Han Qiuxia
Published: November 2007

In the title molecular salt, C13H16N2
2+·C14H8O4S2
2−, the component species are linked into an infinite three-dimensional framework by N—H...O hydrogen bonds. The dihedral angles between the aromatic rings in the cation and the anion are 72.8 (3) and 79.5 (3)°, respectively.
(Acetylacetonato-κ2
O,O′)carbonyl(cyclohexyldiphenylphosphine-κP)rhodium(I)
Authors: Brink Alice , Roodt Andreas , Visser Hendrik G.
Published: November 2007

The title compound, [Rh(C5H7O2)(C18H21P)(CO)], has the acetylacetonate-chelated RhI atom in a square-planar geometry. Intramolecular C—H...O hydrogen bonds exist between the acetylacetonate group and the cyclohexyl ring, resulting in a buckling of the acetylacetonate skeleton. Molecules are packed in positions of least steric hindrance, with the phosphine ligands positioned above and below the Rh–acetylacetonate backbone.
2,2′-[m-Phenylenebis(methyleneimino)]dipyridinium dichloridobis(4-formylbenzoato-κ2
O,O′)cadmate(II) dihydrate
Authors: Deng Zhao-Peng , Gao Shan , Huo Li-Hua , Zhao Hui
Published: November 2007

The CdII atom in the title salt, (C18H20N4)[CdCl2(C8H5O3)2]·2H2O, lies on a twofold rotation axis. It is chelated by the carboxylate group and exists in an octahedral geometry, with the Cl atoms cis to each other. The dication also lies on a twofold rotation axis. The cation and anion interact through one of the uncoordinated water molecules, forming a hydrogen-bonded chain structure that runs along the a axis.
Methyl 5-phenyl-1H-pyrazole-3-carboxylate
Authors: Zhou Guanghua , An Yue , Han Jing , Ge Maofa , Xing Yongheng
Published: November 2007

The title compound, C11H10N2O2, was prepared by the esterfication of 5-phenyl-1H-pyrazole-3-carboxylic acid with methanol. The phenyl ring is rotated out of the pyrazole plane, forming a dihedral angle of 6.4 (1)°. The crystal structure is stabilized by intermolecular aromatic π–π interactions [with a centroid–centroid distance of 3.862 (3) Å between the pyrazole ring and the benzene ring of a neighboring molecule], and by three different types of hydrogen bond (N—H...N, N—H...O and C—H...O).
N-(2-Fluorophenyl)carbamic acid monohydrate
Authors: Yang Xiao-Mao
Published: November 2007

In the crystal structure of the title complex, C7H6FNO2·H2O, intramolecular O—H...O hydrogen bonds are present; intermolecular N—H...O and O—H...F hydrogen bonds result in the formation of a supramolecular network.
trans-Tetrachloridobis(pyrazine-κN)platinum(IV)
Authors: Yousefi Mohammad , Teimouri Shabahang , Amani Vahid , Khavasi Hamid Reza
Published: November 2007

The molecule of the title compound, [PtCl4(C4H4N2)2], possesses mmm symmetry. The PtIVatom is six-coordinated in an octahedral configuration by two N atoms of two pyrazine rings and four Cl atoms. In the crystal structure, there are π–π interactions between the pyrazine rings [the closest distance between adjacent rings is 3.6485 (7) Å].
2,4,5,7,9,10-Hexathia-1,3,6,8(1,4)-tetrabenzenacyclodecaphane
Authors: Guo Zhifo , Zhang Rufen
Published: November 2007

In the title macrocyclic molecule, C24H16S6, the S—S bond lengths are 2.0600 (11) and 2.0589 (12) Å. The crystal packing exhibits no classical intermolecular interactions.
Redetermination of bis(methyltriphenylphosphonium) hexachloridorhenate(IV)
Authors: Hołyńska Małgorzata , Korabik Maria , Lis Tadeusz
Published: November 2007

The title compound, (C19H18P)2[ReCl6], has been prepared by a new method and its structure redetermined [Hołynska, Korabik & Lis (2006). Acta Cryst. E62, m3178–m3180]. The previously observed orientational disorder of the [ReCl6]2− anion (Re site symmetry \overline{1}) is reinterpreted as being due to a minor cocrystallized ReV-containing impurity. Revised magnetic, MS and spectroscopic data are also presented and discussed. The crystal structure involves C—H...Cl hydrogen bonds.
Bis[μ-(2-carboxylatoethyl)phosphonato]bis[aqua(2,2′-bipyridine)cobalt(II)]
Authors: Ying Shao-Ming , Chen Yun , Lin Jun-Yue , Zhou Guang-Pei , Wu Jian-Hong
Published: November 2007

The title compound, [Co2(HO3PCH2CH2COO)2(C10H8N2)2(H2O)2], was obtained by a hydrothermal method. Two six-coordinate cobalt(II) ions are linked by two 2-carboxyethylphosphonate ligands, forming a centrosymmetric dimer. The dimers are further interlinked by O—H...O hydrogen bonds and π–π stacking [centroid–centroid distance = 4.2975 (5) Å] to form a three-dimensional supramolecular structure. The compound is isostructural with the analogous zinc(II) complex reported recently [Ying, Li, Chen, Liu & Liu (2007). Acta Cryst. E63, m555–m557].
Ammonium 6-carboxypyridine-2-carboxylate
Authors: Aghabozorg Hossein , Manteghi Faranak , Ghadermazi Mohammad
Published: November 2007

In the title compound, NH4
+·C7H4NO4
−, the cations and anions are situated on twofold rotation axes. The carboxyl and carboxylate groups are thus disordered; this is consistent with the short and strong O—H...O hydrogen bond across an inversion centre between these groups in neighbouring anions. Ion pairing, and intermolecular O—H...O and N—H...O hydrogen bonds contribute to the crystal packing stability.
4,4′-Dimethyl-2,2′-[1,1′-(ethane-1,2-diyldinitrilo)diethylidyne]diphenol
Authors: Chakkaravarthi G. , Anthonysamy A. , Balasubramanian S. , Manivannan V.
Published: November 2007

The title compound, C20H24N2O2, is a Schiff base compound derived from the condensation of 2-hydroxy-5-methylacetophenone and 1,2-diaminoethane in ethanol. The molecule has crystallographic twofold rotation symmetry. The molecular structure is stabilized by weak intramolecular O—H...N interactions and the crystal packing is stabilized by weak intermolecular C—H...O and C—H...π interactions.
Aquachloridotriphenyltin(IV)–2-[1-(4-pyridylmethyl)-1H-imidazol-2-yl]pyridine (1/1)
Authors: Li Shun-Li , Ping Guang-Ju , Ma Jian-Fang
Published: November 2007

In the title compound, [Sn(C6H5)3Cl(H2O)]·C14H12N4, Ph3SnCl(H2O) and 2-[1-(4-pyridylmethyl)-1H-imidazol-2-yl]pyridine molecules cocrystallize in the same structure. Each Sn atom displays a distorted trigonal–bipyramidal geometry composed of three phenyl groups, one Cl− ion and one coordinated water molecule, which links, via hydrogen bonding, the Ph3SnCl(H2O) molecule to the cocrystallized 2-[1-(4-pyridylmethyl)-1H-imidazol-2-yl]pyridine molecule to generate an infinite chain structure.
(Z)-5-(2-Fluorobenzylidene)-1,3-thiazolidine-2,4-dione
Authors: Sun Hong-shun , Yao Chuan-hao , He Wei , Tang Shi-gui , Guo Cheng
Published: November 2007

In the title compound, C10H6FNO2S, the benzene and thiazolidine rings are oriented at a dihedral angle of 8.90 (3)°. Intramolecular C—H...O, C—H...F and C—H...S hydrogen bonds result in the formation of two nearly planar five-membered rings and one non-planar six-membered ring, the five-membered rings being also nearly coplanar with the adjacent rings. In the crystal structure, intermolecular N—H...O and C—H...O hydrogen bonds link the molecules.
Octabenzyldi-μ2-methanolato-di-μ3-oxido-bis(p-toluenesulfonato)tetratin(IV)
Authors: Li Shun-Li , Han Ting-Ting , Yang Jin
Published: November 2007

The title compound, [Sn4(C7H7)8(CH3O)2(C7H7O3S)2O2], contains the well known structural unit of four organotin units linked by O-atom bridges into a ladder-type centrosymmetric tetramer. The SnIV atoms are coordinated in distorted SnC2O3 trigonal–bipyramidal geometries.
6-Methyl citrate from Dioscorea opposita Thunb.
Authors: Li Mingjing , Wang Yong , Fu Dexue , Liu Xiuhua
Published: November 2007

The title compound (systematic name: methyl 3-carboxy-2-carboxymethyl-2-hydroxypropanoate), C7H10O7, was isolated from the Chinese yam Dioscorea opposita Thunb. In the crystal structure, the molecules present a two-dimensional structure arising from intermolecular O—H...O hydrogen bonds.
10-(4-Hydroxy-3-methoxy-5-nitrobenzylidene)anthrone
Authors: Zhou Wei , Wu Zhimin , Hu Weixiao , Xia Chunnian
Published: November 2007

In the title compound, C22H15NO5, prepared from anthrone and 4-hydroxy-3-methoxy-5-nitrobenzaldehyde, the anthracene fragment is non-planar. The central six-membered ring assumes an asymmetric boat conformation, while the two outer benzene rings make a dihedral angle of 28.08 (10)°. The hydroxy group is involved in an intramolecular hydrogen bond. In the crystal structure, a weak intermolecular C—H...O hydrogen bond links the molecules into ribbons along the c axis.
Diaqua(2,9-dimethyl-1,10-phenanthroline-κ2
N,N′)(3-hydroxybenzoato-κ2
O,O′)nickel(II) nitrate
Authors: Xuan Xiao-peng , Zhao Pei-zheng
Published: November 2007

The asymmetric unit of the title compound, [Ni(C7H5O3)(C14H12N2)(H2O)2]NO3, comprises one half of the NiII complex cation and one half of the non-coordinated nitrate anion, as both the Ni atom and the N and one O atoms of the anion lie on twofold rotation axes. The Ni2+ cation is coordinated by a bidentate 2,9-dimethyl-1,10-phenanthroline (dmphen) ligand, two water molecules and a bidentate 3-hydroxybenzoate anion in a distorted octahedral environment. The OH group of the benzoate is disordered over two positions with equal occupancy. An extensive series of O—H...O hydrogen bonds leads to a supramolecular network structure.
Bis[(3-fluorobenzyl)triphenylphosphonium] bis(1,2-dicyanoethene-1,2-dithiolato-κ2
S,S′)nickel(II)
Authors: Liao Quan-Bin , Liu Ming-Guo , Ni Chun-Lin
Published: November 2007

In the title salt, (C25H21FP)2[Ni(C4N2S2)2], the NiII ion lies on an inversion centre and the [Ni(mnt)2]2− anion (mnt is maleonitriledithiolate) exhibits a square-planar coordination geometry. The (3-fluorobenzyl)triphenylphosphonium cation adopts a conformation in which the four aromatic rings are twisted with respect to the plane including the P atom and the two C atoms linking it to the 3-fluorobenzyl ring. A weak C—H...N hydrogen bond and a C—H...π interaction stabilize the crystal structure.
{2,2′-[o-Phenylenebis(nitrilomethylidyne)]diphenolato}manganese(II)
Authors: Liu Yin-Qiu , Zeng Xi-Rui , Luo Qiu-Yan , Xu Ya-Ping
Published: November 2007

The title complex, [Mn(C20H14N2O2)], is a mononuclear manganese(II) compound. The manganese(II) ion is four-coordinated in a square-planar geometry by two imine N and two phenolate O atoms from one 2,2′-[o-phenylenebis(nitrilomethylidyne)]diphenolate Schiff base ligand. No strong hydrogen bonds were found in the crystal structure.
4-Methyl-2,6-bis(2-naphthylmethylene)cyclohexan-1-one
Authors: Brinda  , Mudakavi Rajeev , Chopra Deepak , Murthy M. Srinivas , Row T. N. Guru
Published: November 2007

The molecular skeleton of the title molecule, C29H24O, has a `bird-like' general conformation. The naphthyl units (`wings') make a dihedral angle of 46.1 (1)°. The central cyclohexanone ring adopts an envelope conformation.