bluuebunny/crossref_metadata_2025 huggingface dataset:
Science signals a new understanding of marihuana
Authors: CHESHER GREGORY B. , CHRISTIE MACDONALD J. , MORGAN JOHN P.
Published: July 2006

Some recent scientific advances in the study of the cannabinoids are outlined. The mode of action of marihuana and the cannabinoids has now been described. They belong to a new class of drug that acts on a hitherto undescribed neuro‐physiological system. An endogenous neurotransmitter or neuromodulator for this system has been isolated, identified and named “anandamide”. These findings throw new light and imbue new confidence for the future of the therapeutic application of compounds derived from and related to the cannabinoids and anandamide. An outline is also provided of the current knowledge and future potential of cannabinoids in therapeutics. The effect of the current legal classification of the cannabinoids on the research and development of these compounds is discussed. [Chesher GB, Christie MJ, Morgan JP. Science signals a new understanding of marihuana. Drug Alcohol Review 1994;13:307–317.]
The impact of alcohol and other drug abuse on the American family
Authors: STRAUSSNER SHULAMITH LALA ASHENBERG
Published: July 2006

The changing economic and social conditions, the availability of a greater variety of substances and the abuse of these substances by adolescents, by women and by the elderly are bringing new pressures on society in general and on family life in particular. The purpose of this paper is to discuss the impact of various substances on the family in today's post‐industrial American society and point out its implications for clinical treatment, research and prevention. [Straussner SLA. The impact of alcohol and other drug abuse on the American family.Drug Alcohol Rev1994;13:393–399]
Empowering family and friends: a new approach to the secondary prevention of addiction
Authors: ORFORD JIM
Published: July 2006

This paper presents a typology and transactional model of how close relatives cope with excessive drinking, drug‐taking or gambling in the family. These are illustrated with four examples taken from a series of research projects in which relatives have been interviewed to understand better how they react and respond. Such information is the groundwork for a World Health Organization initiative to help primary health care workers respond to the needs of relatives. The philosophy behind this initiative, and the steps that primary health care workers might take, are outlined. It is proposed that such workers can help close relatives to find the best coping methods in their circumstances, and that this approach might constitute an important, and hitherto neglected, form of secondary prevention. [Orford J. Empowering family and friends: a new approach to the secondary prevention of addiction. Drug Alcohol Rev 1994;13:417–429]
Family‐centred practice in the interface between child welfare and the alcohol and drug field
Authors: SCOTT DOROTHY A. , CAMPBELL LYNDA M.
Published: July 2006

Recently publicized cases of child abuse and neglect have highlighted the complexity of interaction between professionals in the alcohol and drug field and those in the child welfare field. Despite exhortations to practitioners in both fields to see their clients from a “family‐centred perspective”, a range of psychological, ethical, conceptual, professional and organizational factors mean that this often remains an elusive goal. In this paper the obstacles to adopting a family‐centred approach which cuts across different professions and fields of service are identified. These factors interact in complex ways and although workers feel the tensions, it is difficult for them to perceive the set of constraints as a whole from the vantage point of an actor in the process. By identifying and analysing these obstacles workers in both fields may be better able to collaborate in maximizing the opportunities which also exist for family‐centred practice. [Scott DA, Campbell LM. Family‐centred practice in the interface between child welfare and the alcohol and drug field.Drug Alcohol Rev1994;13:447–454]
Short article: Control over speeded actions: A common processing locus for micro- and macro-trade-offs?
Authors: Jentzsch Ines , Leuthold Hartmut
Published: July 2006

Cognitive control processes associated with long- and short-term adjustments of human behaviour have attracted much interest recently. It is still unclear, however, whether the mechanisms underlying these adjustments share a common locus within the chain of stimulus–response processing. In order to address this issue, the present study employed a speed–accuracy instruction producing a macro-trade-off, whereas micro-trade-off was studied by means of posterror slowing in reaction time (RT). Participants performed a spatially compatible or incompatible four-stimuli-to-two-response alternative choice RT task. Reliable variations in micro-and macro-trade-off as well as effects of spatial compatibility were found in RT and error rate. Most importantly, posterror slowing was larger when instruction stressed accuracy rather than speed, an effect being independent of spatial compatibility. Because the influence of speed–accuracy instruction and posterror slowing on performance was strongest for response alternations, together present findings suggest that the mechanisms underlying micro- and macro-trade-offs have one common locus at the level of motor processing. Additional influences of macro-trade-off on premotoric processing are likely.
Short article: Encoding in verbal, enacted and autobiographical tasks in young and older adults
Authors: Dijkstra Katinka , Kaschak Michael P.
Published: July 2006

Young and older adults participated in a task in which they were asked to say items printed on a card out loud (verbal condition), act out a command printed on a card (enactment condition), and retrieve memories associated with a theme or action printed on a card (autobiographical encoding condition). The results indicate that items in the subject-performed task and autobiographical memory condition were remembered equally well, and both were remembered better than verbal stimuli. Age differences were absent in the verbal condition, but present in both the enactment condition and the autobiographical encoding condition. We discuss the results in the context of earlier findings demonstrating a subject-performed task advantage in mixed-presentation lists (Engelkamp & Zimmer, 1997) and age differences in enactment tasks (Kausler & Lichty, 1982).
Nonverbal Estimation during Numerosity Judgements by Adult Humans
Authors: Beran Michael J. , Taglialatela Lauren A. , Flemming Timothy M. , James Frances M. , Washburn David A.
Published: July 2006

On an automated task, humans selected the larger of two sets of items, each created through the one-by-one addition of items. Participants repeated the alphabet out loud during trials so that they could not count the items. This manipulation disrupted counting without producing major effects on other cognitive capacities such as memory or attention, and performance of this experimental group was poorer than that of participants who counted the items. In Experiment 2, the size of individual items was varied, and performance remained stable when the larger numerical set contained a smaller total amount than the smaller numerical set (i.e., participants used numerical rather than nonnumerical quantity cues in making judgements). In Experiment 3, reports of the number of items in a single set showed scalar variability as accuracy decreased, and variability in responses increased with increases in true set size. These data indicate a mechanism for the approximate representation of numerosity in adult humans that might be shared with nonhuman animals.
Morgan's Canon Revisited
Authors: Allen-Hermanson Sean
Published: July 2006

The famous ethological maxim known as ‘Morgan's Canon’ continues to be an object of interpretive controversy. I reconsider Morgan's Canon in light of two questions: First, what did Morgan intend? Second, is this, or perhaps some reinterpretation of the Canon, useful within cognitive ethology? As for the first issue, Morgan's distinction between higher and lower faculties is suggestive of an early supervenience concept. As for the second issue, the Canon, both in its original form and in various recent rereadings, offers nothing useful to cognitive ethology.
Cinchonidinium bis(perchlorate)
Authors: Zhang Hui-Min , Tu Bing , Jin Zhi-Min , Wu Zhi-Yong , Hu Mao-Lin
Published: July 2006

In the title crystal structure, C19H24N2O2+·2ClO4
−, cations and anions are connected by intermolecular O—H...O and N—H...O hydrogen bonds, forming one-dimensional chains propagating in the the a-axis direction. These chains are, in turn, linked by weak C—H...O hydrogen bonds, forming a three-dimensional network.
Methyl 2,3-amino-3-N,4-O-carbonyl-2,3-N-cyclo-2,3,6-trideoxy-β-L-allopyranoside
Authors: Mendlik Matthew T. , Coleman Robert S. , Qi Guizhong , Lowary Todd L. , McDonald Robert
Published: July 2006

In the structure of the title compound, C8H11NO4, the aziridine and oxazolidinone rings induce flattening of the pyranoside ring, resulting in five of the six pyranoside ring atoms being nearly coplanar. The pyranoside ring thus adopts an E
5 conformation, the methyl and methoxy substituents both being pseudo-axially disposed.
Bis(ethylammonium) (–)-(2S,3S)-tartrate monohydrate
Authors: Wang Zi-Liang , Wei Lin-Heng , Li Ming-Xue , Wang Jing-Ping
Published: July 2006

The asymmetric unit of the title salt, 2C2H8N+·C4H4O6
−·H2O, contains two ethylammonium cations, one (2S,3S)-(−)-tartrate anion and one water molecule, which are linked by intermolecular N—H...O and O—H...O hydrogen bonds, leading to an infinite three-dimensional framework. An intramolecular hydrogen bond influences the structure of the (2S,3S)-(−)-tartrate anion.
1-{4-[(9-Ethylcarbazolyl)vinyl]phenyl}-1H-imidazole
Authors: Cheng Le-Hua , Jin Feng , Yang Lin , Tian Yu-Peng
Published: July 2006

The molecule of the title compound, C25H21N3, contains three aromatic components and displays a non-planar structure. The dihedral angles between the imidazole and benzene planes and between the benzene and carbazole planes are 19.9 (2) and 24.8 (1)°, respectively.
(4S,1′R)-Diethyl 6-methyl-2-[(1′-phenylethylimino)methyl]-4-(2-thienyl)-1,4-dihydropyridine-3,5-dicarboxylate
Authors: Vrábel Viktor , Skubák Pavol , Marchalín Štefan , Langer Vratislav , Baumlová Barbora
Published: July 2006

The absolute configuration of the title compound, C25H28N2O4S, has been determined. The molecules are interconnected by weak C—H...O hydrogen bonds. The 1,4-dihydropyridine (1,4-DHP) ring adopts the usual shallow boat conformation. The thiophene ring is nearly planar.
Methyl 2,3-amino-3-N,4-O-carbonyl-2,3-N-cyclo-2,3,6-trideoxy-α-L-allopyranoside
Authors: Mendlik Matthew T. , Coleman Robert S. , Qi Guizhong , Lowary Todd L. , Ferguson Michael J.
Published: July 2006

In the title molecule, C8H11NO4, the pyranoside ring adopts a flattened E
5 conformation in which five of the six ring atoms are coplanar, and the sixth atom is displaced from this plane. The structure of this molecule differs little from that of the diastereomer in which the stereochemistry at the anomeric centre is inverted.
mer-Bis(diethylenetriamine)zinc(II) dichloride
Authors: Butcher Ray J. , Muratore Nicole , Purdy Andrew P.
Published: July 2006

At 93 K, in the title compound, [Zn(C4H13N3)2]Cl2, the ZnII atom is coordinated by six N atoms from two diethylenetriamine ligands in a distorted octahedral geometry. In contrast to the previously determined chloride and bromide monohydrates, this compound is anhydrous. There is extensive hydrogen bonding between the amine H atoms in the cation and the chloride anions.
N,N′-Bis(2-ethoxyphenyl)oxamide
Authors: Wen Yong-Hong , Xu Li-Li , Li Xue-Mei , Zhang Shu-Sheng
Published: July 2006

The title compound, C18H20N2O4, has an inversion center at the mid-point of the C—C bond of the oxamide unit. Intramolecular N—H...O and C—H...O hydrogen bonds make the molecule essentially planar.
2-(2,4-Dimethylphenyl)-1H-isoindole-1,3(2H)-dione
Authors: Shahzadi Saira , Ali Saqib , Najam-ul-Haq Muhammad , Wurst Klaus
Published: July 2006

In the molecule of the title compound, C16H13NO2, the N and C atoms of the phthalic anhydride and aniline units form a distorted trigonal–planar structure. The molecules are linked by intermolecular C—H...O hydrogen bonds, forming infinite chains along the [101] direction.
2,5-Bis(3,7-dichloroquinolin-8-yl)-1,3,4-oxadiazole
Authors: Ye E , Zhang Yong-Wei , Wang Hui , Niu Yun-Yin , Ng Seik Weng
Published: July 2006

In the title molecular structure, C20H8Cl4N4O, the 1,3,4-triazole ring is twisted with an r.m.s. deviation of 0.0035 Å. One of the quinolinyl substituents makes a dihedral angle of 55.8 (1)° with respect to the central ring, while the other is rotated by 71.7 (1)°; these twists are necessary to relieve steric crowding.
(+)-3,12-Dioxo-5β-cholanic acid: hydrogen bonding in a diketo bile-acid derivative
Authors: Kikolski Elizabeth M. , Davison Mark , Lalancette Roger A. , Thompson Hugh W.
Published: July 2006

The asymmetric unit of the title crystal structure, C24H36O4, contains two independent molecules, differing only in their side-chain conformations and linked though O—H...O hydrogen bonds by carboxyl pairing [O...O = 2.6715 (17) and 2.6544 (17) Å; O—H...O = 170 and 179°]. Six intermolecular C—H...O=C close contacts were found.
[(1H-Benzimidazol-2-ylmethyl)iminodimethylene]diphosphonic acid dihydrate
Authors: Tong Jian-Wei , Ma Li-Fang , Cao Deng-Ke , Li Yi-Zhi , Zheng Li-Min
Published: July 2006

The title compound, C9H15O6N3P2·2H2O, contains two phosphonic acid groups and one benzimidazole group connected by an N(CH2–)3 group. One of the benzimidazole N atoms and two phosphonic acid O atoms of each PO3 group are protonated. Extensive hydrogen-bonding interactions, as well as π–π stacking interactions, are found between the molecules, leading to a three-dimensional supramolecular network structure.
N-Benzoyl-N′-(tert-butylaminocarbonyl)thiourea
Authors: Sun Chuan-Wen , Zhang Xiao-Dong
Published: July 2006

The asymmetric unit of the title compound, C13H17N3O2, contains two molecules and neither of them adopts a planar conformation. The crystal structure is stabilized by the intermolecular N—H...O and intramolecular N—H...O and N—H...S hydrogen bonds. The intermolecular hydrogen bonds link the molecules to form infinite chains along the b axis.
1-(4-Chlorophenyl)-2-(imidazolidin-2-ylidene)ethanone
Authors: Yu Chu-Yi , Yan Sheng-Jiao , Huang Zhi-Tang
Published: July 2006

At 294 K, the C=C(H)—C=O grouping and the imidazoline ring of the title compound, C11H11ClN2O, are coplanar as a result of an intramolecular N—H...O hydrogen bond and the conjugation, while the 4-chlorophenyl ring is twisted from the plane by 23.5 (2)°. Intermolecular N—H...O hydrogen bonding helps to establish the crystal packing.
allo-Inositol
Authors: Bonnet Arnaud , Jones William , Motherwell W. D. Samuel
Published: July 2006

In the crystal structure of the title compound, C6H12O6, molecules adopt a chair conformation. The H atoms were located and their positions refined satisfactorily. The molecules form one intramolecular and 12 intermolecular hydrogen bonds; all hydroxyl groups act as hydrogen-bond donors and acceptors.
(E)-N′-(3-Bromobenzylidene)isonicotinohydrazide
Authors: Qiu Xiao-Yang , Fang Xiao-Niu , Yang Sen-Lin , Liu Wei-Sheng , Zhu Hai-Liang
Published: July 2006

The title compound, C13H10BrN3O, is roughly planar and displays a trans configuration with respect to the C=N double bond. The dihedral angle between the benzene and pyridine rings is 4.2 (3)°. The crystal structure is stabilized by intermolecular N—H...N hydrogen bonds.
2,3-Methylenedioxybenzoic acid
Authors: Hussain Mukhtiar , Ali Saqib , Karmazin Brelot Lydia , Stoeckli-Evans Helen
Published: July 2006

The title compound, C8H6O4, consists of a cyclic diether fused to benzoic acid and crystallizes as a hydrogen-bonded carboxylic acid dimer.
Diethyl 2-[(3-chlorophenylamino)(3-nitrophenyl)methyl]malonate
Authors: Shou Wang-Ge , Yang Yun-Yun , Zhong Jian-Hua
Published: July 2006

The principal structural feature of the title compound, C20H21ClN2O6, is the dihedral angle of 89.15 (8)° between the two benzene rings of the molecule. The N—Csp
2 bond distance of 1.387 (3) Å is significantly shorter than the N—Csp
3 bond distance of 1.461 (3) Å. Classical N—H...O and weak C—H...O hydrogen bonding occurs in the crystal structure.
1-Acetyl-3-(4-chlorophenyl)-5-(4-fluoro-3-phenoxyphenyl)-1H-pyrazole
Authors: Chopra Deepak , Mohan T. P. , Vishalakshi B
Published: July 2006

In the title compound, C23H18ClFN2O2, the dihedral angles between the pyrazole ring and the attached chlorophenyl ring, the planar acetyl group and the fluorobenzene ring of the phenoxyphenyl unit are 3.3 (1), 5.2 (2) and 74.9 (1)°, respectively. The crystal structure is stabilized by intermolecular C—H...O hydrogen bonds and a short Cl...F contact.
Monoclinic polymorph of the 1:1 adduct of sulfathiazole with pyridine
Authors: Drebushchak Tatiana N. , Mikhailenko Mikhail A. , Boldyreva Elena V. , Shakhtshneider Tatyana P.
Published: July 2006

The asymmetric unit of the title compound, C9H9N3O2S2·C5H5N, contains a sulfathiazole and a pyridine molecule linked via N—H...N hydrogen bonds, as in the tetragonal polymorph. The monoclinic polymorph is unstable in air at ambient conditions and loses pyridine giving sulfathiazole. The monoclinic polymorph belongs to the class of disappearing polymorphs; it was the first polymorph to be obtained, but could not be obtained again, after the tetragonal polymorph was crystallized.
4-(4-Fluorophenyl)-3-(4-pyridyl)quinolin-2(1H)-one
Authors: Peifer Christian , Schollmeyer Dieter , Selig Roland , Laufer Stefan
Published: July 2006

The title compound, C20H13FN2O, has the quinolin-2(1H)-one unit in the lactam form. The molecules form dimers via N—H...O hydrogen bonds.
Dicarbonyl(η5-cyclopentadienyl)iodoruthenium(II)
Authors: Bala Muhammad D. , Munyaneza Apollinaire , Coville Neil J.
Published: July 2006

The title compound, [Ru(C5H5)I(CO)2], has a three-legged piano-stool geometry with a distorted pseudo-octahedral structure. The cyclopentadienyl ring is disordered over two sets of positions.
4-(4-Acetyl-2-methoxyphenoxy)benzene-1,2-dicarbonitrile
Authors: Kartal Aslı , Albayrak Çiğdem , Ağar Ayşen , Ocak Ískeleli Nazan , Erdönmez Ahmet
Published: July 2006

The molecule of the title compound, C17H12N2O3, is not planar. The dihedral angle between the phthalonitrile unit and methoxyacetophenone group is 81.1 (1)°.
(E)-2-Acetyl-3-hydroxy-N-phenylbut-2-enethioamide
Authors: Xiao Hai-Lian , Jian Fang-Fang
Published: July 2006

The title compound, C12H13NO2S, was prepared by the reaction of acetylacetone with phenyl isothiocyanate. In addition to the intramolecular O—H...O hydrogen bond, there is a weak intermolecular N—H...S hydrogen bond, which links the molecules into chains extended along the c axis. The crystal packing is further stabilized by van der Waals forces.
Ethyl (3-nitro-2-oxo-1,2-dihydropyridin-1-yl)acetate
Authors: Karis N. David , Loughlin Wendy A. , Jenkins Ian D. , Healy Peter C.
Published: July 2006

The title compound, C9H10N2O5, crystallizes with two crystallographically independent molecules in the asymmetric unit. In the crystal structure, the nitropyridone rings are connected by weak C—H...O interactions, forming sheet-like arrays, which are in turn linked by C—H...π and π–π interactions between the nitropyridone rings on one side, and by C—H...O and van der Waals interactions between the ester groups on the other.
1,2-Dihydrobenzocyclobutene-4-carboxylic acid
Authors: Feng Zhi-Qiang , Xu Bin , Cheng Wei , Wang Jin-Tang
Published: July 2006

In the molecule of the title compound, C9H8O2, the benzocyclobutene system is nearly planar. In the crystal structure, intermolecular O—H...O hydrogen bonds link the molecules into dimers along the c axis.
(E)-N′-(4-Chlorobenzylidene)-3,6-dichloropicolinohydrazide
Authors: Zhang Jie , Ma Chun-An , Song Qing-Bao , Tiekink Edward R. T.
Published: July 2006

The title compound, C13H8Cl3N3O, shows the substituted pyridine ring to be twisted by about 10° from the rest of the essentially planar molecule.
Methyl 2-[3-(4-bromophenyl)-1,2,4-oxadiazol-5-ylmethoxy]phenylacetate
Authors: Liu Zhi-Qian , Liu Zhi-Qian , Yan Xiao-Chen , Wang Hai-Bo
Published: July 2006

The title compound, C18H15FN2O4, was synthesized by the reaction of methyl (2-hydroxyphenyl)acetate and 3-(4-bromo)phenyl-5-chloromethyl-1,2,4-oxadiazole. Weak intramolecular C—H...N hydrogen bonds are observed in the crystal structure.
N-Allyl-4,6-bis(diphenylphosphino)phenoxazine-10-carboxamide
Authors: Ricken Stefan , Schürmann Markus , Preut Hans , Eilbracht Peter
Published: July 2006

In the title compound, C40H32N2O2P2, used as a nixantphos-type ligand in homogeneous catalysis, the central phenoxazine ring system deviates markedly from planarity, the dihedral angle between the two halves being 38.14 (3)°. The intramolecular P...P distance is 4.2400 (7) Å.
4,6-Dibenzoylisophthalic acid dimethyl sulfoxide disolvate
Authors: Liu Shan , Song Guang-Liang , Tang Jun-Mei , Xu Wen-Kai , Zhu Hong-Jun
Published: July 2006

In the crystal structure of the title compound, C22H14O6··2C2H6OS, 4,6-dibenzoylisophthalic acid is connected to two dimethyl sulfoxide molecules by strong O—H...O=S hydrogen bonds. Weak intermolecular C—H...O hydrogen bonds connect molecules into dimers. Intramolecular three-centred C—H...O hydrogen bonding is favoured by a syn conformation of both carboxyl groups. The two dimethyl sulfoxide molecules were found to be disordered over two equally populated sites.
N-(5,7-Dibromo-8-quinolyl)-3,5-difluorobenzenesulfonamide
Authors: Silva Luiz Everson da , Joussef Antonio Carlos , Foro Sabine , Schmidt Boris
Published: July 2006

In the title compound, C21H10Br2F4N2O4S, the quinoline ring system, carrying two Br atoms, is essentially planar. The torsion angles about the N—S bonds connecting the quinoline ring to the aromatic rings are 84.0 (3) and 120.8 (3)°. Intermolecular C—H...O hydrogen bonds link molecules into a three-dimensional array.
1-(4-Hydroxyphenyl)butan-1-one
Authors: Xu Bin , Feng Zhi-Qiang , Wang Jin-Tang , Hu Li-Gang , Huang Jian
Published: July 2006

The title compound, C10H12O2, was synthesized by the Fries rearrangement of phenyl butyrate. There are two independent molecules in the asymmetric unit, and all non-H atoms in each molecule are coplanar, with r.m.s. deviations of 0.050 and 0.024 Å. In the crystal structure, each molecule is linked to symmetry-equivalent molecules by O—H...O hydrogen bonds to form chains along the a axis.
Diaquabis(dicyanamido)bis[4-(2-pyridyl)-4H-1,2,4-triazole-κN
1]cobalt(II)
Authors: Ma Yu-Hong , Ma Pi-Zhuang , Zhu Huan-Qin , Liu Chang-Cheng
Published: July 2006

The title complex, [Co(C2N3)2(C7H6N4)2(H2O)2] or [Co(dca)2(pytrz)2(H2O)2], where pytrz is 4-(2-pyridyl)-4H-1,2,4-triazole and dca is the dicyanamide monoanion, was prepared using pytrz, Na(dca) and CoCl2·6H2O. The CoII atom lies on a center of inversion and is coordinated in a slightly distorted octahderal geometry by two pytrz ligands, two dca ligands and two trans-oriented water molecules. In the crystal structure, complex molecules are linked by O—H...N hydrogen bonds into a two-dimensional network and further into a three-dimensional network via weak C—H...N hydrogen bonds.
(2,4,6-Trimethyldithiobenzoato-κ2
S,S′)bis(triphenylphosphine-κP)gold(I)
Authors: Davis Despina , Fronczek Frank R. , Schuerman Judith A. , Selbin Joel , Watkins Steven F.
Published: July 2006

The asymmetric unit of the title compound, [Au(C10H8S2)(C18H15P)2], consists of two independent molecules. The Au coordination environment can be described as a highly distorted tetrahedral arrangement (S2AuP2), but is more accurately described as a flattened trigonal pyramid defined by three normal covalent bonds (SAuP2), with a second S atom more distantly bonded to the Au atom.
Dicaesium pentacyanotricuprate(I), Cs2Cu3(CN)5
Authors: Chippindale Ann M. , Hibble Simon J. , Pohl Alexander H. , Bilbé Edward J.
Published: July 2006

Cs2Cu3(CN)5 has a layered structure consisting of [Cu3(CN)5]2− sheets stacked in an ABAB fashion along the c axis, with Cs+ cations lying between the sheets. The sheets are generated by linking –(CuCN)– chains, in which the C[triple-bond]N groups are ordered, via [Cu(CN)3]2− units. The two bridging cyanide groups of each [Cu(CN)3]2− unit show partial `head-to-tail' disorder of C and N, whilst the third C[triple-bond]N group is terminal and ordered with C bonded to Cu.
2-Pyridiniohydrazinium dichloride
Authors: Zora Metin , Turgut Günseli , Odabaşoğlu Mustafa , Büyükgüngör Orhan
Published: July 2006

The crystal structure of the title compound, C5H9N3
2+·2Cl−, is stabilized by N—H...Cl hydrogen bonds, forming a three-dimensional network. Each chloride anion forms three hydrogen bonds with N atoms, and the hydrazine unit forms R
2
1(5) motifs with one of the Cl− anions. The aromatic ring is almost coplanar with both the N atoms of the hydrazine substituent and with one of the Cl− anions.
1,9,26-Triazahexacyclo[17.6.1.13,7.19,16.010,15.020,25]pentacosa-3,5,7(26),10(15),11,13,16(27),17,19(28),20(25),21,23-dodecaene
Authors: Kumar G. Senthil , Chinnakali K. , Swaroop M. Gayatri , Rajakumar P. , Fun Hoong-Kun
Published: July 2006

The title compound, C25H19N3, has one half-molecule in the asymmetric unit, with the other half generated by a crystallographic twofold axis of symmetry. The dihedral angle between the two symmetry-related indole ring systems is 46.79 (2)°. The pyridine ring forms a dihedral angle of 80.56 (2)° with the plane of each indole ring system. Molecules related by a center of inversion are linked via intermolecular C—H...π interactions to form chains along the c axis.
Redetermination of p-ethoxyacetanilide (phenacetin)
Authors: Hansen Lars Kr. , Perlovich German L. , Bauer-Brandl Annette
Published: July 2006

The crystal structure of the title compound, C10H13NO2, has been redetermined in order to obtain more precise structure parameters.
Redetermination and H-atom refinement of (S)-(+)-ibuprofen. Corrigendum.
Authors: Hansen Lars Kr. , Perlovich German L. , Bauer-Brandl Annette
Published: July 2006

In the paper by Hansen, Perlovich & Bauer-Brandl [Acta Cryst. (2003), E59, o1357–o1358], the coordinates of the R enantiomer of the title compound, C13H18O2, were incorrectly given instead of those of the S enantiomer. The correct coordinates of the S enantiomer are given here.
3,9-Bis(2-hydroxy-2-propyl)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane 3,9-dioxide hemihydrate
Authors: Zhang Yu-Hua , Wang Xiao-Hui , Liu Shan , Yao Cheng
Published: July 2006

In the crystal structu of the title compound, C11H22O8P2·0.5H2O, the asymmetric unit contains two spiro[5.5]undecane molecules and one water molecule. The structure is stabilized by intra- and intermolecular C—H...O and O—H...O hydrogen bonds.
5,15-Bis(3,5-di-tert-butylphenyl)-3,7,13,17-tetramethyl-2,8,12,18-tetrapropylporphyrin
Authors: Boyd Peter D. W. , Chaker Leila , Rickard Clifton E.F.
Published: July 2006

The title molecule, C64H86N4, possesses a crystallographically imposed centre of symmetry with a rectangular distortion of the porphyrin core. In the crystal structure, molecules form laddered assemblies via partial π stacking of porphyrins. The assemblies are further formed into layers separated by tert-butyl groups.
Difluoro[1-(1-naphthyliminomethyl)-2-naphtholato-N,O]boron
Authors: Xia Min , Ge Shao-Qin , Li Xiang-Sheng
Published: July 2006

The title compound, C21H14BF2NO, was synthesized by the reaction of 3-[(E)-(naphthalen-1-ylimino)methyl]naphthalen-2-ol, diisopropylethylamine and boron trifluoride etherate. The mean planes of the two naphthalene systems make a dihedral angle of 71.97 (4)°. The crystal packing is stabilized by π–π stacking interactions and van der Waals forces.
Acetone (2,6-dichlorobenzoyl)hydrazone: chains of π-stacked hydrogen-bonded dimers
Authors: Wardell Solange M. S. V. , Souza Marcus V. N. de , Wardell James L. , Low John N. , Glidewell Christopher
Published: July 2006

In the title compound, C10H10Cl2N2O, the aryl ring is almost orthogonal to the rest of the molecule. Molecules are linked into centrosymmetric dimers by N—H...O hydrogen bonds, and these dimers are linked into chains by a single π–π stacking interaction.
cyclo-Tris(μ2-3-phenyl-1H-pyrazole)tricopper(I)
Authors: Morawitz Thorsten , Lerner Hans-Wolfram , Bolte Michael
Published: July 2006

The crystal structure of the title compound, [Cu3(C9H7N2)3], consists of discrete CuI–phenylpyrazolyl trimers, with Cu atoms bridged by exo-bidentate phenylpyrazolyl ligands having short intramolecular Cu...Cu contacts [3.2076 (14)–3.2402 (14) Å]. The Cu3N6 nine-membered rings are essentially planar.
[2-Oxidobenzaldehyde (4-hydroxylbenzoyl)hydrazonato]diphenyltin(IV) ethanol solvate
Authors: Hong Min , Yin Han-Dong , Wang Da-Qi
Published: July 2006

In the title complex, [Sn(C6H5)2(C14H10N2O3)]·C2H6O, the Sn atom is in a distorted trigonal–bipyramidal geometry, with Sn—O distances of 2.077 (4) and 2.130 (4) Å. The crystal packing shows a hydrogen-bonded dimeric arrangement of two Sn complexes and two ethanol solvent molecules located about a crystallographic inversion centre.
1-(8-Quinolylaminomethylene)naphthalen-2(1H)-one
Authors: Sakane Genta , Kawasaki Hideki , Shibahara Takashi
Published: July 2006

The title hydroxynaphthalene derivative, C20H14N2O, crystallizes in the keto form. Intramolecular N—H...O/N hydrogen bonds stabilize the planar conformation of the molecule.
(+)-N-[(R)-1-(2-Hydroxy-5-methylphenyl)propyl]-N-[(R)-2-methyl-1-phenylpropyl]ammonium chloride
Authors: Yang Xiao-Feng , Wang Da-Qi , Zhang Guang-You , Hirose Takuji
Published: July 2006

The title compound, C20H28NO+·Cl−, was synthesized by a condensation reaction. The absolute configuration of the new stereogenic centre (the C atom between the N atom and the phenol ring) was determined as R. The crystal structure is stabilized through N—H...Cl and O—H...Cl hydrogen bonds and intramolecular N—H...O hydrogen bonding.
catena-Poly[[bis(μ-3-dimethylamino-N-salicylidenepropylamine)isothiocyanatodicadmium(II)]-μ-isothiocyanato]
Authors: Cai Wen-Xuan , Zhang Qi-Wei , Su Hong , Feng Yun-Long
Published: July 2006

The deprotonated 3-dimethylamino-N-salicylidenepropylamine Schiff base chelates to a Cd atom in the polymeric title compound with a dinuclear building block, [Cd2(NCS)2(C12H17N2O)2]
n
. The O atom of the Schiff base also engages in bridging. The bridging NCS group links adjacent dinuclear entities into a helical chain that runs along the b axis of the monoclinic unit cell.
5-tert-Butyl-1-[2-(2,4-dichlorophenoxy)propionyl]thiobiuret
Authors: Liu Guo-Hua , Xue Yun-Ning , Yao Mei , Yu Han , Fang Hai-Bin
Published: July 2006

The title compound, C15H19Cl2N3O3S, is a phenoxythiourea compound with a tert-butylaminocarbonyl group attached to the distal N atom of the thiourea bridge. There are intramolecular N—H...O and N—H...S hydrogen bonds, forming six- and five-membered rings.
3-(4-Chlorophenyl)-5-ethyl-6-methyl-2-morpholinothieno[2,3-d]pyrimidin-4(3H)-one
Authors: Fang Zheng-Dong , Ding Ming-Wu
Published: July 2006

In the title compound, C19H20ClN3O2S, the two fused rings of the thieno[2,3-d]pyrimidin-4(3H)-one system are almost coplanar. The packing of the molecules in the crystal structure is mainly governed by intermolecular C—H...O hydrogen-bonding and π–π interactions.
Tris(2,2′-bipyridyl)iron(II) dibromide 4.5-hydrate
Authors: Heilmann Julia , Lerner Hans-Wolfram , Bolte Michael
Published: July 2006

The title compound, [Fe(C10H8N2)3]Br2·4.5H2O, contains discrete tris(2,2′-bipyridyl)iron(II) cations, bromide anions and water molecules. The Fe atom (site symmetry 3) is octahedrally coordinated by six N atoms of the three bidentate bipyridyl ligands. One bromide ion occupies a site of symmetry m; the other one is located on a site of symmetry 32. All the water O atoms are also located on special positions of site symmetries 3, m (×2) and \overline6.
2,6-Bis(phenylsulfanylmethyl)pyridinium-4-olate
Authors: Luo Cheng-Cai , Zhang Hua-Xing , Jin Ting , Yang Zhi-Jie
Published: July 2006

In the crystal structure of the title compound, C19H17NOS2, hydrogen bonds link the molecules into infinite chains running along the b axis.
3,3′-(4-Amino-4H-1,2,4-triazole-3,5-diyl)dibenzoic acid
Authors: Wang Peng , Ma Jian Ping , Huang Ru-Qi , Dong Yu-Bin
Published: July 2006

The title compound, C16H12N4O4, has a non-planar molecular structure. An intermolecular hydrogen-bonding network helps to stabilize the crystal structure.
A monoclinic modification of K3[InCl6]
Authors: Chen Lin , Wu Bo-Lin , He Xiao-Yi , Mi Jin-Xiao
Published: July 2006

The crystal structure of monoclinic tripotassium indium(III) hexachloride, K3[InCl6], obtained by the solvent evaporation method, has been determined from single-crystal X-ray diffraction data. The crystal structure is characterized by isolated [InCl6] octahedra located in the centre of the cell and at the centre of each of the edges of the cell, linked with K+ cations to form a three-dimensional structure.
3,4-Di-p-tolyl-6,7-dihydroimidazo[2,1-b][1,3]thiazole
Authors: Özbey Süheyla , Meriç Asiye
Published: July 2006

The title compound, C19H18N2S, is a member of a new series of 2,3-dihydroimidazo[2,1-b][1,3]thiazoles and was obtained from 4,5-di-p-tolyl-1,3-dihydroimidazole-2-thione and 1-bromo-2-chloroethane. The thiazole ring adopts an envelope conformation; the plane through N, S and two C atoms makes a dihedral angle of 2.35 (3)° with the fused imidazole ring. The tolyl groups are essentially planar.
trans-Dichlorobis[2-(o-tolyliminomethyl)phenolato-κO]nickel(II)
Authors: Liu Xiao-Hong , Zeng Jun-He
Published: July 2006

In the title compound, [NiCl2(C14H13NO)2], the NiII atom is four-coordinated by two phenolate O atoms from two 2-(o-tolyliminomethyl)phenol ligands and two Cl anions, giving an approximately tetrahedral geometry. The Ni atom lies on a crystallographic twofold rotation axis. A strong intramolecular N—H...O hydrogen bond forms an S(6) ring.
Bis(2-formylphenolato-κ2
O,O′)manganese(II)
Authors: Wang Qing , Fang Xiao-Niu
Published: July 2006

The title compound, [Mn(C7H5O2)2], is a mononuclear manganese(II) complex. The MnII atom, lying on an inversion centre, is four-coordinated by four O atoms from two salicylaldehyde ligands, forming a square-planar geometry.
Poly[[bis(benzimidazole)manganese(II)]-di-μ-1,5-dicyanamido]
Authors: Wang Shou-Wu , Ge Hai-Yan , Yang Jian-Hu , Li Bao-Long , Zhang Yong
Published: July 2006

In the crystal structure of the title complex, [Mn(C2N3)2(C7H6N2)2]
n
or [Mn(dca)2(bim)2]
n
, where dca is dicyanamide and bim is benzimidazole, each MnII atom is located on a center of symmetry and is in a six-coordinated distorted octahedral environment. Four N atoms from four dca ligands fill the equatorial positions, and two N atoms from two bim ligands occupy the axial positions. The dicyanamide ligands adopt an end-to-end coordination mode and link the Mn atoms to form a two-dimensional network.
Methyl 4-O-pivaloyl-β-D-xylopyranoside
Authors: Petrović Vesna , Halasz Ivan , Tomić Srđanka , Čalogović Dubravka Matković
Published: July 2006

The six-membered ring of the title compound, C11H20O6, adopts the chair conformation, with the 4-O-pivaloyl group in an equatorial position. Two vicinal hydroxyl groups of each molecule form four hydrogen bonds of the O—H...O type in a one-dimensional chain running along the b axis.
2-(2-Methylphenyl)-4,5-diphenyl-1H-imidazole
Authors: Seethalakshmi T. , Puratchikody A. , Lynch Daniel E. , Kaliannan P. , Thamotharan S.
Published: July 2006

In the title molecule, C22H18N2, all bond lengths and angles are normal. Intermolecular N—H...N hydrogen bonds with an N...N distance of 2.933 (2) Å, link the molecules into chains running along the c axis. The crystal packing is further stabilized by van der Waals forces.
Diethyl 7,12-dihydro-8-iodo-6,13-dioxo-cis-7H,11H-2,4-dioxa-5a,6a,12a,13a-tetraazabenz[f]cycloocta[cd]azulene-13b,13c-dicarboxylate
Authors: Chen Yun-Feng , Wang Yu-Zhou , Guo Hui-Zhen , Li Yi-Tao
Published: July 2006

The title compound, C21H23IN4O8, is a glycoluril derivative with five fused rings. An iodobenzene ring is fused to a seven-membered ring which binds two of the N atoms from separate rings of the glycoluril system. The other N atoms are linked via methylene groups to form an eight-membered ring with two ether O atoms separated by an additional methylene group. The crystal structure is stabilized by inversion-related C—H...π interactions together with C—H...O non-classical hydrogen bonds.
Hexaaquanickel(II) bis{[N-(2-hydroxybenzylidene)alanylglycinato]cuprate(II)} dodecahydrate
Authors: Xu Bin , Zhang Yan-Yan , Liu Wen-Long , Hu Xiao-Ya
Published: July 2006

The crystal structure of the title compound, [Ni(H2O)6][Cu(C12H11N2O4)]2·12H2O, consists of CuII complex anions, NiII complex cations and solvent water molecules. The CuII ion is located on a general position and coordinated by a Schiff base ligand with a square-planar CuN2O2 geometry. The NiII ion is located on an inversion center and coordinated by six water molecules in an octahedral geometry.
(Λ)-[(R,R)-2,6-Bis(2-phenyl-4,5-dihydrooxazol-4-ylmethoxymethyl)pyridine]zinc(II) bis(trifluoromethanesulfonate) dichloromethane solvate
Authors: Seitz Michael , Zabel Manfred , Reiser Oliver
Published: July 2006

The structure of the title compound, [Zn(C27H27N3O4)](CF3O3S)2·CH2Cl2, shows a complex cation with trigonal–bipyramidal geometry around the Zn. The stereochemistry at the metal centre exhibits complete selectivity for the Λ configuration.
6,7,8,9-Tetrahydro-5H-pyrido[2,3-b]azepine-5,8-dione: a hydrogen-bonded dimer structure
Authors: Gu Xiao-Dan , Zhou Fu-Hui , Zhou Hua , Xu Jing-Wei , Deng Jian-Cheng
Published: July 2006

In the title compound, C9H8N2O2, two crystallographically independent molecules form a dimer structure, in which two N—H...N hydrogen bonds generate an intermolecular R
2
2(8) ring.
trans-Bis{2-[1-(hydroxyimino)ethyl]phenolato}cobalt(II)
Authors: Xiao Hai-Lian , Jian Fang-Fang
Published: July 2006

In the title compound, [Co(C8H8NO2)2], the Co atom has a distorted square-planar coordination involving two N atoms and two O atoms from two ethanone 1-(2-hydroxyphenyl)oximato ligands. The molecular structure and packing are stabilized by intramolecular O—H...O hydrogen bonds and C—H...π intermolecular interaction.
trans-Diaquabis(2-carboxylato-4-nitropyridine 1-oxide-κ2
O
1,O
2)manganese(II) dihydrate
Authors: Chen Jing , Lu Yong , Wu Wen-Shi , Dai Jin-Cao , Lin Jian-Ming
Published: July 2006

In the centrosymmetric title complex, [Mn(C6H3N2O5)2(H2O)2]·2H2O, each MnII ion has a six-coordinate octahedral environment within an O6 donor set. The presence of O—H...O hydrogen-bonding interactions links adjacent molecules into a two-dimensional array.
11,11a,13a-Trimethyl-2,3,3a,3b,4,5,5a,6,11,11a,11b,12,13,13a-tetradecahydro-1H-7-azaindeno[5,4-a]anthracen-1-ol methanol solvate
Authors: Yan Ji-Zhong , Li Jian , Rao Guo-Wu
Published: July 2006

In the title compound, C23H33NO·CH4O, the asymmetric unit consists of one molecule of C23H33NO and one methanol solvent molecule, which are connected through O—H...N and O—H...O hydrogen bonds leading to the formation of zigzag-like chains parallel to the a axis.
[6,6′-Bis(chloromethyl)-2,2′-bipyridyl]dichlorocobalt(II)
Authors: Nellas Ricky B. , Fronczek Frank R. , Newkome George R. , Watkins Steven F. , Xia Yuanjiao
Published: July 2006

The title compound, [CoCl2(C12H10Cl2N2)], contains a Co atom coordinated in a quasi-tetrahedral manner by two Cl atoms and two N atoms of the bipyridyl group. The five-membered CoN2C2 metallocycle has a slightly twisted envelope conformation with the Co atom at the flap.
1-{[1-(2,4-Dichlorophenyl)-1,3-dioxolan-2-yl]methyl}-1H-1,2,4-triazole
Authors: Xie Xue-Qun , Yang Chun-Long , Luo Jin-Xiang , Li Qian-Jin
Published: July 2006

In the title compound, C12H11Cl2N3O2, also referred to as azaconazole, the five-membered 1,3-dioxolane ring assumes an envelope conformation. In the crystal packing, the molecules are linked into an extended three-dimensional network by weak C—H...O interactions.
(1E,3E)-4-(Tetra-O-acetyl-D-arabino-tetritol-1-yl)-1-(4-tolyl)-1,2-diaza-1,3-butadiene
Authors: Diánez María Jesús , Estrada María Dolores , Pérez-Garrido Simeón
Published: July 2006

In the title compound, C21H26N2O8, the configurations of the three chiral centres are known from the synthesis, corresponding to a D-arabino configuration. Both double bonds show the E configuration in the solid state. Packing of the molecules is governed by normal van der Waals contacts.
(3-Methoxy-2-oxidobenzaldehyde benzoylhydrazonato)dimethyltin(IV)
Authors: Chen Shao-Wen , Yin Han-Dong , Wang Da-Qi
Published: July 2006

In the title complex, [Sn(CH3)2(C15H12N2O3)], the Sn atom is found in a distorted trigonal–bipyramidal geometry with Sn—O distances of 2.131 (3) and 2.178 (3) Å. Intermolecular Sn...O contacts stabilize the crystal packing.
Poly[aqua-μ3-p-aminobenzoato-κ3
N:O:O′-μ2-p-aminobenzoato-κ2
O:O′-p-aminobenzoato-κ2
O,O′-gadolinium(III)]
Authors: Chen Zi-Lu , Zhang Yu-Zhen , Liang Fu-Pei
Published: July 2006

In the title compound, [Gd(C7H6NO2)3(H2O)]
n
, a two-dimensional coordination polymer, the eight-coordinate GdIII ions are bridged by two carboxylate groups from two μ2-p-aminobenzoate ligands, forming a centrosymmetric dinuclear block. These blocks are further connected by μ3-p-aminobenzoate ligands, yielding a two-dimensional network. The coordination polymers thus formed are connected via hydrogen bonds, producing a three-dimensional supramolecular structure.
trans-Dicyanotetrakis(2-isocyano-2,4,4-trimethylpentane)ruthenium(II)
Authors: Imhof Wolfgang , Halbauer Kathi
Published: July 2006

In the centrosymmetric title compound, [Ru(CN)2(C9H17N)4], the central Ru atom is octahedrally coordinated by four isocyanide and two cyanide ligands in a trans configuration. The corresponding cis isomer, which is also produced in the reaction of Ru3(CO)12 with isooctylisocyanide, is not configurationally stable and slowly isomerizes into the trans isomer in solution.
10,10′-Dinitro-10,10′-(butane-1,4-diyl)dianthracen-9(10H)-one
Authors: Arslan Mustafa , Asker Erol , Masnovi John , Baker Ronald J.
Published: July 2006

The title compound, C32H24N2O6, was obtained as the decomposition product of (E,E)-1,4-bis[9,10-dihydro-9-nitro-10-(trinitromethyl)-9-anthryl]butane, which was synthesized via a photochemical reaction of 1,4-bis(9-anthryl)butane with tetranitromethane. The asymmetric unit contains one half-molecule; the complete molecule is generated by a center of inversion. The crystal packing is determined mainly by intermolecular C—H...O interactions.
(E)-2,4-Dichlorobenzaldehyde oxime
Authors: Wu Cai-Xia , Lu Xiu-Qin
Published: July 2006

In the title molecule, C7H5Cl2NO, which is an E isomer, all bond lengths and angles are normal. Intermolecular O—H...N hydrogen bonds link the molecules into centrosymmetric dimers. The crystal packing is further stabilized by van der Waals forces.
2,3-Bis[(1-phenyl-1H-tetrazol-5-ylsulfanyl)methyl]quinoxaline
Authors: Wang Wei , Pan Ning-Ning , Zhao Bing
Published: July 2006

The title compound, C24H18N10S2, crystallizes with two independent molecules in the asymmetric unit. The two terminal (1-phenyltetrazol-5-yl)sulfanyl groups adopt a trans configuration with respect to the central quinoxaline ring system in both independent molecules.
N-(2,6-Difluorobenzoyl)-N′-(4,6-dimethoxypyrimidin-2-yl)urea
Authors: Wang Qing-Dong , Xue Si-Jia , Yan Lin , Ke Shao-Yong
Published: July 2006

In the title compound, C14H12F2N4O4, an intramolecular N—H...N hydrogen bond forms a six-membered ring within the urea bridge.
(3-Acetylpyridine-κN)chlorobis(triphenylphosphine-κP)copper(I): a suitable candidate for absolute asymmetric synthesis?
Authors: Lennartson Anders , Salo Kent , Håkansson Mikael
Published: July 2006

It was found that 3-acetylpyridine is capable of displacing triphenylphosphine from [CuCl(PPh3)3], forming the title compound, [CuCl(C7H7NO)(C18H15P)2]. The two triphenylphosphine ligands possess the same sense of chirality, and the molecules are therefore conformationally chiral. The compound was found to crystallize as a racemate (centrosymmetric space group) under the crystallization conditions employed. The molecular structure shows that the carbonyl C atom is blocked at one side by a triphenylphosphine ligand, while the other face is open for nucleophilic attack. Obtaining chiral crystals of the title compound is thus a future objective. In the crystal structure, C—H...O(=C)-bonded dimers are formed, which are further stabilized by π–π interactions. The dimers form infinite chains through weak C—H...π interactions.
[η2-8-(tert-Butylimino)-1-naphthyl]bis(η5-cyclopentadienyl)titanium(IV)
Authors: Kooijman Huub , Leijen Monique M. van , Akkerman Otto S. , Bickelhaupt Friedrich , Spek Anthony L.
Published: July 2006

The title compound, [Ti(C5H5)2(C15H15N)], displays an iminoacyl fragment in an N-outside conformation, indicating that the C=N vector points away from the σ-bonded C atom. Considering only the geometrical centres of all η-coordinated groups, the TiIV ion adopts a severely distorted tetrahedral configuration. The crystal packing displays a short C—H...π contact linking the molecules into an infinite chain running along the b-axis direction.
Succinimidyl 7-(diethylamino)-2-oxo-2H-chromene-3-carboxylate chloroform solvate
Authors: Bardajee Ghasem Rezanejade , Winnik Mitchell A. , Lough Alan J.
Published: July 2006

In the title molecular structure, C18H18N2O6·CHCl3, the dihedral angle between the two fused, essentially planar, six-membered rings is 5.4 (2)°. In the crystal structure, weak intermolecular C—H...O hydrogen bonds and π–π stacking interactions connect molecules into two-dimensional layers.
An orthorhombic polymorph of dichlorotris(pentafluorophenyl)phosphorane
Authors: Barnes Nicholas A. , Godfrey Stephen M. , Halton Ruth T. A. , Mushtaq Imrana , Pritchard Robin G.
Published: July 2006

An orthorhombic form of dichlorotris(pentafluorophenyl)phosphorane, C18Cl2F15P, has been obtained as the product of the reaction between PhSeCl and (C6F5)3P, and is a polymorph of the previously reported monoclinic form obtained from the reaction of (C6F5)3P with Cl2. The molecule displays nearly perfect trigonal–bipyramidal geometry, and features a number of intermolecular F...F contacts, which lead to fluorous domains in the crystal packing.
Bis(4-hydroxybenzoato-κO)bis(1,10-phenanthroline-κ2
N,N′)cadmium(II) dihydrate
Authors: Pan Tian-Tian , Liu Jia-Geng , Xu Duan-Jun
Published: July 2006

In the title compound, [Cd(C7H5O3)2(C12H8N2)2]·2H2O, the CdII ion is located on a twofold axis and assumes a distorted octahedral CdN4O2 coordination geometry, formed by two phenanthroline (phen) ligands and two 4-hydroxybenzoate (HBA) anions. π–π stacking is observed between the parallel phen ligands of adjacent CdII complexes. One water O atom is located on a twofold axis. The other water molecule is disordered over two sites.
2-Diethylamino-6-ethyl-6-methyl-3-phenylthieno[2,3-d]pyrimidin-4(3H)-one
Authors: Fang Zheng-Dong , Ding Ming-Wu
Published: July 2006

In the title compound, C19H23N3OS, the two fused rings of the thieno[2,3-d]pyrimidin-4(3H)-one system are almost coplanar. The packing of the molecules in the crystal structure is determined by van der Waals forces. No intermolecular hydrogen-bonding interactions or π–π stacking interactions are present in the crystal structure.
4-{N-[2-(1,3-Dioxo-1,3-dihydroisoindol-2-yl)-3-phenylpropionyl]anilino}-1-phenethylpiperidinium chloride methanol disolvate
Authors: Petrov Ravil R. , Vardanyan Ruben S. , Nichol Gary S. , Carducci Michael D. , Ma Shou-wu , Lai Josephine Y. , Hruby Victor J.
Published: July 2006

The structure of the title compound, a fentanyl derivative with formula C36H36N3O3
+·Cl−·2CH3OH, crystallizes as a racemic mixture. The organic cation has an extended conformation and the structure displays O—H...O, O—H...Cl and N—H...Cl hydrogen bonding.