bluuebunny/crossref_metadata_2025_split huggingface dataset:
Aluminiumphosphate mit nichtzentrosymmetrischen Schicht-und Raumnetzstrukturen aus topologisch verwandten Motiven: 1. KAl2(PO4)2(OH)·4H2O/Aluminum Phosphates with Non-Centrosym metric Layer-and Framework-Structures of Topologically Related Motifs 1. KAl2(PO4)2(OH)·4H2O
Authors: Dick Stefan , Großmann Gisbert , Ohms Gisela , Zeiske Thomas 
Published: February 2015

Abstract
KAl2(PO4)2(OH)·4H2O could be obtained by the reaction of gibbsite with a potassium-phosphate solution of pH = 5.5 at 333 K. A single crystal X-ray structure analysis showed that KAl2(PO4)2(OH)·4H2O is isotypic with the mineral minyulite. Crystal data: orthorhombic space group Pba2, a = 934.7(1), b = 982, 1 (1), c = 551,0(1) pm, Z = 2. It possesses dimeric units of Al-octahedra which are bridged by an OH-and two bidentate phosphate groups. The dimers are linked by phosphate to plane polar layers. Cavities in the layers are occupied by K ions. One corner of each phosphate tetrahedron is not connected to Al but accepts four hydrogen bonds from water molecules bound to Al of the adjacent layer. A powder neutron scattering experiment with KAl2(PO4)2(OD)·4D2O showed that four D atoms and P coordinate the hydrogen bond accepting O in KAl2(PO4)2(OD)·4D2O like a square pyramid. Analogous dimeric building units are found in the Al phosphate minerals minyulite and morinite; similar dimers of Fe octahedra occur in the mineral copiapite, a number of Fe containing enzymes and numerous synthetic iron complexes.
High-resolution 31P solid-state NMR spectra show only one isotropic line at δiso = -9.6 ppm and confirm the presence of one symmetry independent phosphorus site in the unit cell. In the 1H-MAS-NMR spectra the water molecules and the bridging OH groups show signals at 5.4 and 1.4 ppm, respectively
Aluminiumphosphate mit nichtzentrosymmetrischen Schicht- und Raumnetzstrukturen aus topologisch verwandten Motiven: 2. KAl2(PO4)2(OH)·2H2O/Aluminum Phosphates with Non-Centrosymmetric Layer- and Framework-Structures of Topologically Related Motifs: 2. KAl2(PO4)2(OH)·2H2O
Authors: Dick Stefan , Großmann Gisbert , Ohms Gisela , Müller Manfred 
Published: February 2015

Abstract
KAl2(PO4)2(OH)·2H2O was obtained by the reaction of gibbsite with a potassium-phosphate solution of pH = 5.5 at 373 K. A single crystal X-ray structure analysis showed that it is an ordered, F-free K-analog of the microporous compound AIPO4-CI2 . Crystal data: orthorhombic space group P212121, a = 920.5(1), b = 970.7(2), c = 982.8(2) pm, Z = 4. The structure consists of dimeric units of AIO6 octahedra and AIO5 trigonal bipyramids, bridged by an OH and two bidentate phosphate groups. The dimers are linked by phosphate to form corrugated layers which are topologically related to the layers in KAl2(PO4)2(OH)·4H2O and minyulite. The layers are connected by Al-O-P and hydrogen bonds to a three dimensional framework structure with K ions in channel-like cavities. A neutron powder scattering experiment with KAl2(PO4)2(OD)·2D2O showed that the bridging OD group and only one D of each water molecule are involved in hydrogen bonding.

31P MAS NMR spectra show two isotropic lines at δiso = -6.9 and -18,7 ppm of the intensity ratio 1:1 and confirm the presence of two crystallographically independent P atoms in the unit cell. In the 1H MAS NMR spectra the water molecules and the bridging OH group show signals at 5.9 and 1.1 ppm, respectively.
Darstellung und Kristallstruktur der oligomeren Iodo-d10-metallate(II) [M(I)(CH3CN)4]4[Cd6I16] · 1,5 CH3CN mit M(I) = Cu, Li/Synthesis and Crystal Structure of the Oligomeric Iodo-d10-metallate(II) [M(I)(CH3CN)4]4[Cd6I16] · 1,5 CH3CN with M(I) = Cu, Li
Authors: Bach Ansgar , Hoyer Michael , Hartl Hans 
Published: February 2015

Abstract
The reaction of CuI or Lil with Cdl2 in the polar solvent acetonitrile results in the formation of the iodocadmates [Cu(CH3CN)4]4[Cd6I16] · 1.5CH3CN (1) and [Li(CH3CN)4]4[Cd6I16] · 1.5CH3CN (2) with the oligomeric anion [Cd6I16]4-. This new type of halometallate anion, which is found in both isotypic structures, is built up by six alternating corner and edge sharing Cdl4 tetrahedra. 1: Space group P1̄ (No 2), a = 838.5(4), b = 1465.9(9), c = 1929.8(6) pm, α = 93.01(3), β = 99.13(3), γ = 105.11(3)°; 1: Space group P1̄(No 2), a = 841.7(8), b = 1470(9), c = 1945.5(9) pm, α = 93.27(5), β = 99.13(5), γ = 104.83(5)°.
Reaktionsbeteiligung elektrophiler Funktionen bei der Dehydrierung 4-substituierter Piperidine / Participation of Electrophilic Groups with the Dehydrogenation of 4-Substituted Piperidines
Authors: Möhrle H. , Jeandrée M. 
Published: February 2015

Dehydrogenation of 2-(1-piperidinyl)-benzaldehydes 1-3 using mercury(II)-EDTA gen­ erated the lactams 4-6, indicating a reversible reaction of a carbinolamine intermediate with the formyl group. The yields and oxidation rates decreased by 4-substitution in the piperidine moiety.
The 2-(1-piperidinyl)-acetophenones 11, 16-19 showed a similar behavior with mercury(II)-EDTA but gave rise to a product pattern. The trans-benzoquinolizidones 12, 20, 23, 26, 29 resulted from the cyclic iminium compounds reacting with the acetyl group as nucleophile. By another oxidation these species were partially transformed to the quinolinones 13, 21, 24, 27, 30. An intermediate electrophilic neighboring of the carbonyl group with the cyclic hemiaminals led finally to the lactams 14, 22, 25, 28, 31. Mechanisms for the reactions are proposed
Intermetallic Cerium Compounds with Ordered U3Si2 Type Structure
Authors: Pöttgen Rainer , Fugmann Artur , Hoffmann Rolf-Dieter , Rodewald Ute Ch. , Niepmann Dirk 
Published: February 2015

Abstract
New intermetallic cerium compounds Ce2T2Mg (T = Ni, Cu, Pd), C2T2Cd (T=Pd, Pt, Au), and C2T2Pb (T = Pt, Au) were prepared by reaction of the elements in sealed tantalum tubes in a high-frequency furnace. Most C2T2X (X = Mg, Cd, Pb) compounds are stable after annealing at about 1000 K, while Ce2Pd2Mg is obtained as single phase only after melting and quenching. A thermal treatment at about 1000 K leads to decomposition in CePdMg and CePd. The eight compounds were investigated by X-ray diffraction both as powders and single crystals, and most structures were refined from single crystal data. They adopt an ordered U3Si2 type structure with space group P4/mbm: a = 759.6(1), c = 376.71 (9) pm, wR2 = 0.0562, 294 F2 values, 12 parameters for Ce2Ni2Mg, a = 787.41(9), c = 387.23(7) pm, wR2 = 0.0438, 222 F2 values, 12 parameters for Ce2Cu2Mg, a = 777.14(8), c = 400.03(7) pm, wR2 = 0.0276, 221 F2 values, 13 parameters for Ce2Pd2.03Mg0.97, a = 777.90(6), c = 393.28(6) pm, wR2 = 0.0360,317 F2 values, 12 parameters for Ce2Pd2Cd, and a = 779.90(7), c = 389.97(7) pm, wR2 = 0.0453, 315 F2 values, 12 parameters for Ce2Pt2Cd. Refinement of the occupancy parameters revealed full occupancy for most sites. A mixed palladium/magnesium (97 % Mg / 3 % Pd) occupancy was observed only for the 2a site of Ce2Pd2.03Mg0.97, indicating a small homogeneity range for this compound. Ce2Au2Cd (a = 804.93(7), c =393.36(6) pm) and the plumbides Ce2Pt2Pb (a = 794.63(7), c = 381.50(6) pm) and Ce2Au2Pb (a = 810.70(7), c = 394.85(7) pm) were characterized through their Guinier powder data. The structures of the Ce2T2X compounds can be interpreted as an intergrowth of distorted AIB2 and CsCl related slabs of compositions CeT2 and CeX. The course of the lattice parameters and chemical bonding within the series of Ce2T2X compounds are briefly discussed.
Synthese und Kristallstruktur des Bromdifluormethyl-triphenyl- phosphoniumbromids, [(C6H5)3PCF2Br]+ Br- / Synthesis and Crystal Structure of Bromodifluoromethyl-triphenylphosphonium Bromide, [(C6H5)3PCF2Br]+ Br-
Authors: Bender C. , Wulff-Molder D. , Vogt H. , Ritschl F. , Meisel M. 
Published: February 2015

Abstract
Difluorobromomethyl-triphenylphosphonium bromide [(C6H5)3PCF2Br]+ Br- (1) has been prepared by the reaction of triphenylphosphine with dibromodifluoro-methane in acetonitrile or methylene chloride. The colorless crystals are monoclinic, space group P 21/n, Z=4, a = 1067.1(2), b = 1488,5(2), c = 1178,2(2) pm, β = 95,67(3)°. The lattice contains Br- anions and [(C6H5)3PCF2Br]+ cations with a Br-Br distance of 322,33(11) pm.. For the title compound the results of AM 1, PM 3 ,and MNDO calculations are in good agreement with corresponding values determined by the X-ray analysis only in the case of PM 3.
The yellow-red [(C6H5)3PCF2Br]+ Br3
- (2) has been obtained by treating 1 with equimolar quantities of elemental bromine in methylene chloride solution.
Lanthanide Complexes with Carbacylamidophosphates: The First Registration of Chelate Coordination of the Neutral Ligand Form in the Structure of Di-(N,Nf-tetramethyl-NM -benzoylphosphoryl- triamide)cerium(III) Nitrate
Authors: Gubina Katerina E. , Ovchynnikov Vladimir A. , Amirkhanov Vladimir M. , Fischer Helmut , Stumpf Rüdiger , Skopenko Viktor V. 
Published: February 2015

Abstract
The coordination compounds of the general formula Ln(HL)2(NO3)3, (where Ln = La - Eu (without Pm), HL = C6H5C(O)NHP(O)[N(CH3)2]2, N,Nʹ-tetramethyl-Nʺ-benzovlphosphoryl-triamide) have been synthesized and characterized by means of IR, UV-VIS, 1H, 31P NMR spectroscopy, and X-ray analysis. The complexes are isostructural according to X-ray powder diffraction studies. The crystal structure of the cerium(lll) complex has been determined. Crystal data: monoclinic, P21/c, with a = 10.503(9), b = 15.62(2), c = 21.91(2) Å, β = 99.56(8)°, Z = 4, V = 3546(6) Å3, R1= 0.0550, wR2 = 0.1383 for 6970 unique reflections used. The complex has a molecular structure. Neutral phosphoryltriamide ligands are coordinated to the metal ion in a bidentate manner via phosphoryl and carbonyl oxygen atoms with formation of six membered chelate rings. The coordination polyhedron of the Ce atom is a sphenocorona; C.N. = 10 (4 O[HL] + 6 O [NO3
-]).
Zum System Bi2O3 /Bi2Se3/BiCl3,I. Das Zustandsdiagramm Bi2O3/Bi2Se3/BiCl3/On the System Bi2O3/Bi2Se3/BiCl3, I. The Phase Diagram Bi2O3/Bi2Se3/BiCl3
Authors: Schmidt P. , Oppermann H. 
Published: February 2015

Abstract
The phase relations in the quaternary system Bi/Se/O/Cl have been studied and the existence of several new compounds in the pseudotemary area Bi2O3/Bi2Se3/BiCl3 has been established by solid state and chemical vapour transport reactions. The phase diagram is derived from X-ray powder diffraction and thermal analysisdata, and from measurements of the decomposition pressure behaviour. Three new quaternary phases with different compositions exist in the system: Bi4O4SeCl2, Bi10O12SeCl4 and Bi22O28SeCl8.
By estimation of the thermodynamic data of the quaternary phases it is possible to calculate complex heterogeneous chemical equilibria between all the binary, ternary and quaternary compounds of the phase diagram. As a result, we can describe thermodynamically the observed phase relations and the direction of thermal decomposition of the respective compounds.
Mono-and Dinuclear triphos-Metal(II)-Complexes with N itriles as Co-Ligands
Authors: Mann Susanne , Hüttner Gottfried , Zsolnai Laszlo , Heinze Katja , Jacob Volker , Antelmann Björn , Driess Alexander , Schiemenz Berthold 
Published: February 2015

Abstract
The triphos ligand CH3C(CH2PPh2)3 reacts with Co(BF4)2 (aq) or Fe(BF4)2 (aq) in the presence of nitriles RCN to produce the pentacoordinate [triphosCo(NCR)2](BF4)2 (1) or the hexacoordinate [triphosFe(NCR)3](BF4)2 (2). With α,ω-dinitriles NC-X-CN dinuclear compounds [triphosFe(NC-X-CN)3Fetriphos](BF4)4 (X = (CH2)3 (3a) X = o-C6H4 (3b) are formed. The compound [triphosFe((CH3)2C=C(CN)2)3Fetriphos](PF6)4 (3c) is obtained from FeCl2 by addition of the triphos ligand, the dinitrile and NaPF6.
All compounds are characterised by the usual analytical techniques including X-ray analy­ses. It is observed that the quadruply positively charged compounds 3 tend to associate the respective anions in pockets formed by the three segments of the Fe(NC-X-CN)3Fe bridg ing units.
Thermal Decomposition of Prussian Blue Analogues of the Type Fe[Fe(CN)5NO]
Authors: Inoue Hidenari , Narino Shuichi , Yoshioka Naoki , Fluck Ekkehard 
Published: February 2015

Abstract
The structure and properties of the thermal decomposition products of Fe[Fe(CN)5NO] · x H2O (x = 5 ~ 6) have been studied by Mössbauer and FT-IR spectroscopy, X-ray diffraction, and conductivity measurements. The valence state and coordination environment of the iron ions change dramatically when the nitrosyl ligand is eliminated by heat-treatment under vacuum at 200 °C. The dark blue product obtained by heat-treatment under vacuum at 250 °C is characteristic of the mixed-valence state in Prussian blue analogues. The electrical conductivity of the dark blue product is higher by a factor of 103 than that of the starting material because of the mixed-valence state between Fe(III)[Fe(II)(CN)5] and Fe(II)[Fe(III)(CN)5]. Heat-treatment under vacuum at 350°C yields a new product Fe(II)[Fe(II)(CN)4] the crystal structure of which is different from that of the starting material. The electrical conductivity of the decomposition product obtained at 350 °C is about 105 times higher than that of the starting material.
Kristallstruktur, Schwingungsspektren und Normalkoordinatenanalyse von trans-(Et4N)[OsF4Cl2] / Crystal Structure, Vibrational Spectra and Normal Coordinate Analysis of trans-(Et4N)[OsF4Cl2]
Authors: Lorenzen B. , Preetz W. 
Published: February 2015

Abstract
By careful oxidation of trans-tetrafluorodichloroosmate(IV) with PbO2/trifluoroacetic acid in dichloromethane the corresponding osmium(V) complex anion rran5 -[OsF4Cl2]- is for­ med. The X-ray structure determination on a single crystal has been performed of trans-(Et4N)[OsF4Cl2] (triclinic, space group P1̄a = 7.190(5), b = 7.205(5), c = 7.732(5) Å, a = 71.28(1), β = 71.32(1), 7 = 70.76(1)°, Z = 1). Based on the molecular parameters of the X-ray determination the IR and Raman spectra of the complex have been assigned by normal coordi­ nate analysis. The valence force constants are: fd(OsCl) = 2.13 and fd(OsF) = 3.81 mdyn/Å.
The Crystal Structures and Thermal Behaviour of the Mercury Arsenates Hg2(H2AsO4)2, Hg2As2O6 and HgAs2O6
Authors: Weil Matthias 
Published: February 2015

Abstract
Crystals of Hg2(H2AsO4 )2 , which are isotypic with the corresponding dihydrogenphosphate Hg2 (H2PO4)2 , were obtained from a concentrated arsenic acid solution. The crystal structure (P21/n, a = 6.1838(4), b = 15.0987(9), c = 4.7989(3) Å, β = 91.977(1)°, Z = 2, R = 0.045 for 1318 structure factors, 56 variables) contains a Hg2
2+ dumbbell with a distance d(Hg-Hg) = 2.5040( 10) Å and a symmetrical coordination of four oxygen atoms for each mercury atom. The oxygen atoms also belong to tetrahedral dihydrogenarsenate groups H2AsO4
−, which stabilize the structure by hydrogen bonding. On heating Hg2(H2AsO4)2 condenses to give the mercury(I) metaarsenate Hg2As2O6. Crystals of that compound were obtained under hydrothermal conditions at 165 °C starting from elemental mercury in 60 wt% aqueous H3AsO4 . The crystal structure (P3̄1m, a = 4.8411(2), c = 7.5961(9) Å, Z = 1, R = 0.037 for 376 structure factors, 13 variables) may be represented by sheets of edge sharing [AsO6] octahedra and layers of Hg2
2+ dumbbells, which alternate along the c axis. The dumbbells show a distance d(Hg-Hg) = 2.5190(10) Å and are coordinated symmetrically by six oxygen atoms at a distance d(Hg-O) = 2.374(4) Å. They are positioned above and below the vacant sites of adjacent [As2O6]2− layers. On further heating Hg2As2O6 disproportionates into elemental mercury and mercury(II) metaarsenate, HgAs2O6. Single crystals of HgAs2O6 were grown via chemical vapor transport from microcrystalline HgAs2O6 with HgCl2 as transport agent, using a temperature gradient of 650 → 550 °C. HgAs2O6 (P3̄1m, a = 4.8482(2), c = 4.9789(10) Å, Z = 1, R = 0.031 for 367 structure factors, 12 variables) crystallizes in the PbSb2O6 structure type, where anionic [Sb2O6]2− layers have the same arrangement. The divalent mercury atomsohave a pseudooctahedral environment of oxygen atoms with a distance d(Hg-O) = 2.353(3) Å.
Hydrido(acylenolato)cobalt(III)-Verbindungen mit Trimethylphosphan- Liganden: Insertionsreaktionen mit Alkinen und die ersten Carbonylcobalt(III)-Komplexe / Hydrido(acylenolato)cobalt(III) Compounds Containing Trimethylphosphane Ligands: Insertion Reactions with Alkynes and the First Carbonylcobalt(III) Complexes
Authors: Klein Hans-Friedrich , Li Xiaoyan , Flörke Ulrich , Haupt Hans-Jürgen 
Published: February 2015

Abstract
Formal insertion of phenylethyne into Co-H functions of mer-octahedral acyl(enolato)-cobalt(III) hydrides 1-3 proceeds under ambient conditions affording η1-vinylcobalt(III) compounds where the dianionic acyl(enolato) ligands are derived from 2-formyl-4-phenyl-cyclohexanone (4), 1-formyl-cyclohexan-2-one (5), and 3-hydroxo-2,3-diphenyl-propenal (6). Dissociation and association of trimethylphosphane results in a reversible transformation of penta-coordinate complexes 4 -6 into hexa-coordinate ones 7 -9, respectively, involving different tautomeric vinyl species. In toluene solution 9 rearranges by reductive C,C coupling into a 5,6-η2-olefin(enolato)cobalt(I) complex 10. Trimethylsilylethyne undergoes a hydrolytic desilylation reaction which is followed by reductive C,C-coupling reactions of acyl and vinyl functions selectively producing chelating η1-enolato-5,6-η2-olefin ligands in cobalt(I) com ­ pounds 13 -16 where the (ax,eq)chelating ligands are derived from 1-formyl-cyclohexan-2-one (13), 3-hydroxo-2,3-diphenyl-propenal (14), 2-formyl-α-tetralone (15), and 2-formyl-4-tert-butyl-cyclohexanone (16). An axial position of the enolato-O donor in the trigonal bipyramidal configuration of complex 15 has been confirmed by X-ray diffraction analysis. With 1,4-bis(trimethylsilyl)buta-diyne 1,2-addition in cobalt(III) hydrides 2, 3, 11 (as deriverd from 2-formyl-α-tetralone), and 12 (as derived from 2-formyl-4-tert-butyl-cyclohexanone) produces 2-metalated vinyl groups in compounds 17 -20. Dissociation of trimethylphosphane from 17 and 19 does not activate C,C coupling at the cobalt(III) centre of penta-coordinate 21 and 22. Steric congestion in compounds 17, 18, and 20 favours exchange of trimethylphosphine for carbon monoxide affording the first octahedral carbonyl complexes of cobalt (d6) (23 -25). In the crystal and in solution a meridional configuration is adopted by complex 23 with the CO group in a position opposite to the acyl function.
Spektroskopische Charakterisierung und Kristallstruktur von Trifluormethyliod(III)-bis(trifluoracetat) CF3I(OCOCF3)2 / Spectroscopic Characterisation and Crystal Structure of Trifluoromethyliodine(III) Bis-trifluoroacetate, CF3I(OCOCF3)2
Authors: Minkwitz Rolf , Berkei Michael 
Published: February 2015

Abstract
Trifluoromethyliodine(III) bis-trifluoracetate [CF3I(OCOCF3)2] was obtained by reaction between CF3IF2 and (CH3)3SiOCOCF3 at -50 °C. It crystallises in the triclinic space group P1̄ with a = 520.8(1), b = 1042.9(1), c = 1087.5(1) pm, α = 65.22(0)°, β = 81.18(0)°, γ = 80.09(0)°, and two formula units per unit cell. The compound has also been characterised by its Raman and IR spectra.
Tri(Terf-Butyl)plumbyl-phosphanes, Synthesis and Multinuclear Magnetic Resonance
Authors: Herberhold Max , Köhler Christian , Tröbs Volker , Wrackmeyer Bernd 
Published: February 2015

Abstract
The reaction of tri(tert-butyl)plumbyl-lithium (1) with various phosphorus chlorides was studied. With diphenyl- and amino(phenyl)phosphorus chlorides the formation of hexa(tertbutyl) diplumbane (2) and tetraphenyldiphosphane (3) or the respective 1,2-bis(am ino)-1,2-diphenyl- diphosphanes [e. g. 5: amino = PhCH2(tBu)N] was dominant. The presence of at least one tert-butyl group at the phosphorus atom gave access to tri(tert-butyl)plumbyl-di(tert-butyl) phosphane (4) and to tri(tert-butyl)plumbyl-amino(tert-butyl)phosphanes [amino = tBu(H)N (6), Me(Ph)N (7), PhCH2(Me)N (8), PhCH2(tBu)N (9)] via the reaction of 1 with the corresponding phosphorus chlorides. Side products were again 2 and the corresponding diphosphanes, unidentified compounds, and in two cases, bis(phosphanyl)-di(tert-butyl)plumbanes [phosphanyl = tBu(H)N(tBu)P (10), Me(Ph)N(tBu)P (11)]. Trimethylplumbyl-benzyl(methyl)- amino(tert-butyl)phosphane (12) was prepared for comparison. All compounds were characterized by their 1H , 13C, 15N (9 ),31P and 207Pb NMR data. The coupling constants 1J(207Pb,31P) are large and negative, whereas the coupling constants 1J(207Pb, 13C) are small and can be of either sign. The coupling constants 2J(31P-N-13C) of 6 - 12 indicate a preferred conformation of the substituents at phosphorus and nitrogen
Kristallstrukturen der Komplexe Von Quecksilber(Ii)Iodid und -Thiocyanat mit L,13-Bis(8-Chinolyl)-L,4,7,10,13-Pentaoxatridecan („Kryptand 5“)
Authors: Pickardt Joachim , Wiese Sven 
Published: February 2015

Abstract
Reactions of 1,13-bis(8-chinolyl)-1,4,7,10,13-pentaoxatridecane (“Cryptand 5”) with HgX2 (X = I, SCN) yield crystals of [(cryptand 5)(HgI2)2] (1) and [(cryptand 5 )2{Hg(SCN)2}4] (2), resp. In both complexes two molecules of HgX2 are bound to one ligand molecule. 1 has symmetry Ci with the oxygen atom O(3 ) of the ether chain on a center of symmetry of the unit cell, each Hg atom is bound to the two I atoms, the N atom of the chinolyl residue, and one oxygen atom, O(1) and O(l)i, resp. of the ligand; neighbouring complex units are connected via iodine bridges thus forming chains. In 2 also two formula units of HgX2 are bound to one ligand molecule, but contrary to 1 the complex is not centrosymmetric. The Hg atoms of the two Hg(SCN)2 groups are co-ordinated differently: both are bound via sulphur atoms to two SCN-groups, one being a terminal SCN group, the other acting as a bridge to the Hg atom of a neighbouring complex unit. The first Hg atom is connected to a chinolyl N atom and too oxygen atoms, the second to a chinolyl N atom and three oxygen atoms. There are two independent complex units per asymmetric unit which are related by a non-crystallographic twofold axis, and which are connected via two SCN bridges. These “double molecules” are also interconnected by thiocyanate bridges, thus forming a chain structure
One-Pot Preparation of O-Xylylene Diamine and its Related Amines
Authors: Kawahara Shun-ichi , Uchimaru Tadafumi 
Published: February 2015

Abstract
A method for one-pot preparation of o-xylylene diamine, 1,8-diaminomethylnaphthalene, and 1,2,4,5-tetrakis(aminomethyl)benzene has been developed. The procedure is simpler and the yield of the reaction is higher than by the conventional method
Notizen: Ca{Li2[Mn'N]2}: Kristallchemischer Brückenschlag Zwischen Lithium-Nitrido-Verbindungen und Borid-Carbiden des Typs M [B2C2]/ Ca{Li2[M nIN]2}: Link between Crystal Chemistry of Lithium Nitrido Compounds and Boride Carbides of the Type M [B2C2]
Authors: Klatyk Jens , Niewa Rainer , Kniep Rüdiger 
Published: February 2015

Abstract
The nitridom anganate(I) Ca{Li2[MnIN]2) (space group P4/mbm: a = 703.35(7), c = 383.19(6) pm; Z = 2) contains infinite linear chains 1
∞=[MnIN2/2
2-] running along the [001] direction. The nitride species of the chains are further linked via three coordinated lithium to form planar 4.82-nets 2
∞{Li2N2
4-} parallel (001). Ca2+ occupies the centers of the eight-membered rings of the planar nets. The 4.82-arrangement 2
∞{Li2N2
4-} together with the stacking sequence ...AA... along [001] exhibit strong topological similarities with the anionic substructure 2
∞[B2C2
2-] observed in the crystal structure of e.g. Ce[B2C2]