| 21 | Author
| Claudia Friedrich | Requires cookie* | | Title
| Zur Stereochemie des freien Elektronenpaares in Verbindungen des vierwertigen Tellurs: Verzerrtes TeCI62"-Oktaeder in |H  | | | Abstract
| ,N (C H 2),NH3lTeCI," regulär oktaedrisches Anion in | HjINfCHjliNHilSnCI,, On the Stereochemistry of Lone Pair Electrons in Com pounds with Tetravalent Tellurium: D istorted TeCl62~-Octahedron in [H3N (C H 2)3N H 3]T eCl6, Regular Octahedral A nion in [H3N (C H 2)3N H 3]SnC l6 W alter Abriel* Using 293 K diffractom eter intensity data, the structures o f [H 3N (C H 2)3N H 3]TeCl6 and [H3N (C H 2)3N H 3]SnCl6 have been determ ined by single crystal X-ray technique and refined to a | | |
Reference
| Z. Naturforsch. 40b, 1691 (1985); eingegangen am 30. August 1985 | | |
Published
| 1985 | | |
Keywords
| Lone Pair Electrons, Tellurates, Stannates, Crystal Structure | | |
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| default:Reihe_B/40/ZNB-1985-40b-1691.pdf | | | Identifier
| ZNB-1985-40b-1691 | | | Volume
| 40 | |
22 | Author
| Joachim Pickardt, Pamela Droas | Requires cookie* | | Title
| Metal Complexes with Hexamethylenetetramine as a Ligand, V II [1] Crystal Structures of the Zinc Chloride Adduct ZnC l2 * C6H 12N4, and the Zinc Bromide Adduct ZnBr2 * C6H 12N4  | | | Abstract
| By reaction of zinc chloride and zinc bromide with hexamethylenetetramine in water/methanol crystals of the adducts Z nC l2 • C6H 12N 4 and ZnBr2 • C6H I2N4, resp. were obtained. The compounds are isotypic, they crystallize in the orthorhombic space group P2,am (non-standard setting of space group Pmc2,, No. 26), Z = 2. The lattice parameters of the zinc chloride adduct are a = 1168.0(4), b = 685.7(4), and c = 601.1(4) pm, of the zinc bromide adduct a — 1188.9(6), b = 721.5(5), and c = 602.3(4) pm. The adducts are polymeric, they form parallel chains in the crystal. The zinc atoms are bonded to two halo gen atoms and, via nitrogen atoms, to two hexa methylenetetramine molecules, which act as biden-tate ligands. The coordination of the zinc atoms is approximately tetrahedral. | | |
Reference
| Z. Naturforsch. 40b, 1756—1758 (1985); eingegangen am 18. Juli 1985 | | |
Published
| 1985 | | |
Keywords
| Hexamethylenetetramine, Zinc Chloride Adduct, Zinc Bromide Adduct, Crystal Structures | | |
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| default:Reihe_B/40/ZNB-1985-40b-1756_n.pdf | | | Identifier
| ZNB-1985-40b-1756_n | | | Volume
| 40 | |
23 | Author
| Horst Sabrowsky, Alfred Thimm, Petra Vogt-M, Ertens | Requires cookie* | | Title
| NaLiS: Ein weiteres Interalkalimetallsulfid NaLiS: A nother Inter Alkaline M etal Sulphide  | | | Abstract
| The colourless com pound NaLiS has been prepared and its structure determ ined by single crystal X-ray diffraction techniques. The very hygroscopic NaLiS crystallizes in the tetragonal space group P4/nmm (Z = 2) with the cell parameters a = 402.6(1), c = 649.5(2) pm. The structure was solved from 720 counter reflections (216 symmetry independent re flections) by differential Fourier syntheses. Refining gives a least squares residue of 0.024. The a«/z'-PbFCl-type structure is characterized by layers o f LiS4/4-tetrahedra connected by their edges in two dim ensions and 2 interspersed layers of sodium. | | |
Reference
| Z. Naturforsch. 40b, 1759 (1985); eingegangen am 19. A ugust 1985 | | |
Published
| 1985 | | |
Keywords
| Sodium Lithium Sulphide, Crystal Structure, X -R ay | | |
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| default:Reihe_B/40/ZNB-1985-40b-1759_n.pdf | | | Identifier
| ZNB-1985-40b-1759_n | | | Volume
| 40 | |
24 | Author
| Udo Kunze, Hussain Jawad, Wolfgang Hiller, Regina Naumer | Requires cookie* | | Title
| Phosphinsubstituierte Chelatliganden, XIV [1] Wasserstoff-Brückenbindung in THF-Addukten von Tetracarbonylchrom-und -molybdänkomplexen mit P,S-koordinierten Phosphinothioformamid-Liganden. Kristallstruktur von [(CO) 4 Cr(PPh 2 C(S)NHMe)] THF Phosphine-Substituted Chelate Ligands, XIV [1] Hydrogen Bonding in THF-Adducts of Tetracarbonylchromium and -molybdenum Complexes with P,S-Coordinated Phosphinothioformamide Ligands. Crystal Structure of [(CO) 4 Cr(PPh 2 C(S)NHMe)] * THF  | | | Abstract
| The tetracarbonyl chromium and molybdenum P,S-chelate complexes la, b and 2a, b are obtained by low-temperature photolysis of the metal hexacarbonyls with the neutral phos-phinothioformamide ligands, Ph 2 PC(S)NHR (R = Me (a), Ph (b)), as stoichiometric 1/1 THF adducts. A weak N-H---O(THF) hydrogen bond is deduced from the ; H NMR spectra which show a collapse of the N-methyl doublet in la (T c -18 °C) but not in 2a. Unusually small P-C(S) couplings are observed in the 13 C{'H} NMR spectra. The N-methyl chromium complex la crystal-lizes in the triclinic space group P1 (Z = 2) with the lattice constants a = 1076.6(3), b = 1235.8(3), c = 915.1(3) pm, a = 97.99(4)°, ß = 92.73(5)°, y = 87.63(5)°. The planar thioamide unit adopts the Z configuration and is linked to the tetrahydrofuran molecule by a hydrogen bond (N-H1-031 164°) with an 0---H contact distance of 191 pm. | | |
Reference
| Z. Naturforsch. 40b, 512—517 (1985); eingegangen am 23. November 1984 | | |
Published
| 1985 | | |
Keywords
| Hydrogen Bonding, THF-Adducts, Phosphinothioformamide Complexes, Crystal Structure, Chromium Complex | | |
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| default:Reihe_B/40/ZNB-1985-40b-0512.pdf | | | Identifier
| ZNB-1985-40b-0512 | | | Volume
| 40 | |
26 | Author
| Wolfgang Saak, Siegfried Pohl | Requires cookie* | | Title
| lodsubstituierte Eisen-Schwefel-Cluster: Neue Synthesen sowie zur Bildung und Stabilität von Fe2S2I42-, Fe4S4I42_ und Fe6S6I62-. Die Kristallstruktur von (Et4N)6(Fe4S4l4)2Fe2S2l 4 Iodine Substituted Iron-Sulfur-Clusters: Novel Syntheses, Form ation and Stability of Fe2S2I42_, Fe4S4l 42_, and Fe6S6I62~. The Crystal Structure of (E t4N)6(Fe4S4l4)2Fe2S2l4  | | | Abstract
| Fe4S4I42~ has been prepared in tetrahydrofuran (TH F) solution by the reaction of Fe, S8, I2, and Me3N CH 2PhTI~, and isolated as black, fairly air-stable crystals of (M e3N CH 2P h)2Fe4S4I4 (1) in nearly quantitative yield. 1 reacts with iron and iodine or with elem ental sulfur and F e l2 in C H 2C12 solution to form Fe6S6I62~ which was isolated as black crystals of (M e3N C H 2P h)2Fe6S6I6 (5). In T H F solution Fe6S6I62-is converted to Fe4S4I42~ which was isolated as Fe(T H F)6Fe4S4I4-4 TH F (3). Evidence is presented for an equilibrium betw een Fe2S2I42~ and Fe4S4I42_, F el42~ and sulfur when iron, sulfur, iodine and E t4N +I~ react (with the required stoichiom etry) to form Fe2S2I42_ in C H 2C12 solution. From this solution (E t4N)6(Fe4S4I4)2Fe2S2I4 (6) crystallizes as black needles | | |
Reference
| Z. Naturforsch. 40b, 1105 (1985); eingegangen am 9. A pril/29. Mai 1985 | | |
Published
| 1985 | | |
Keywords
| Iodine Substituted Iron-Sulfur Clusters, Novel Syntheses, Stability, Crystal Structure | | |
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| default:Reihe_B/40/ZNB-1985-40b-1105.pdf | | | Identifier
| ZNB-1985-40b-1105 | | | Volume
| 40 | |
27 | Author
| Rolf Minkwitz, UlrikeN. Aß, Armin Radünz, Hans Preut | Requires cookie* | | Title
| Beiträge zur Chemie der Schwefelhalogenide, 9 [1]  | | | Abstract
| Trifhiormethyldichlorsulfonium(IV)-hexafluoroarsenat(V) Contributions to the Chemistry of Sulfur Halides, 9 [1] Trifluorom ethyldichlorosulfonium (IV) H exafluoroarsenate(V) The synthesis of CF3SC12+A sF6_ is reported. The sulfonium salt is characterised by IR , Ram an, l9F and l3C NMR spectroscopy. The vibrational assignment is based on a Cs model for the cation and assisted by a normal coordinate analysis. The crystal structure has been determ ined from three-dimensional diffractom eter data at —133 K. The structural data for the cation are: C -F = 128.8(5) pm, C -S = 197,8(3) pm, S -C l -195,9(1) pm and F -C -F -111,8(3)°, C l -S -C l = 104,22(5)°, C -S -C l -99,8(1)°. | | |
Reference
| Z. Naturforsch. 40b, 1123—1129 (1985); eingegangen am 6. Mai 1985 | | |
Published
| 1985 | | |
Keywords
| Preparation, Crystal Structure, Bonding and Force C onstants, Sulfur Halides | | |
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| default:Reihe_B/40/ZNB-1985-40b-1123.pdf | | | Identifier
| ZNB-1985-40b-1123 | | | Volume
| 40 | |
28 | Author
| Martin Schabert, Gerhardt Pausewang | Requires cookie* | | Title
| Darstellung, Kristallstruktur und spektroskopische Daten von Rb2VOF4 Preparation, Crystal Structure and Spectroscopic Data o f R b2V O F 4  | | | Abstract
| Crystals o f R b 2V O F 4 have been obtained under hydrothermal conditions. The crystal structure (orthorhom bic, space group Pnma, a = 759.9(2) pm, b = 579.1(2) pm, c = 1193.8(4) pm, Z = 4, dc = 3.96 gem -3, dm = 3.90 gem-3, R — 0.019 for 655 independent reflections) shows infinite zig-zag-chains o f V O F 5-octahedra along the 6 -axis, linked by c/j-bridging F-atoms. Despite o f orien tational disorder, clear evidence for a trans-effect could be established: d (V —O) 165.8(2), d (V —F,rans bridge) 221.1(1), d (V -F cu bridge) 203.6(1), d (V -F term inal) 185.2(2), 187.8(2), 193.2(2) pm. | | |
Reference
| Z. Naturforsch. 40b, 1437—1440 (1985); eingegangen am 9. Juli 1985 | | |
Published
| 1985 | | |
Keywords
| R b 2V O F 4, Crystal Structure, Preparation, Spectroscopic Data | | |
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| default:Reihe_B/40/ZNB-1985-40b-1437.pdf | | | Identifier
| ZNB-1985-40b-1437 | | | Volume
| 40 | |
30 | Author
| Hans-U Hummel | Requires cookie* | | Title
| Zur Darstellung und Kristallstruktur von Barium-l,l-dicyanoethylen-2,2-oxo-thiolat-Tetrahydrat — ein Salz mit dem Anion [0(S)CC(CN) 2 ] 2 " Synthesis and Crystal Structure of Barium-l,l-dicyanoethylene-2,2-oxo-thiolate Tetrahydrate — a Salt with the Anion [0(S)CC(CN) 2 ] 2 ~  | | | Abstract
| By reaction of COS with malonitrile in presence of potassium ethanolate in ethanol K 2 0(S)CC(CN) 2 • H : 0 is obtained. It reacts with Ba(NCS) 2 -3H 2 0 in ethanol to form colourless crystals of BaO(S)CC(CN) 2 • 4H : 0. The space group of the barium salt is Pn2,a (standard: Pna2,) with Z = 4. The structure consists of Ba 2+ and [0(S)CC(CN) 2 ] 2 ~ ions. The barium ion is bound to three nitrogen and six oxygen atoms. The coordination polyhedron is a tricapped trigonal prism. The anion [0(S)CC(CN) 2 ] 2 ~ is not exactly planar and is involved in several hydrogen bondings. | | |
Reference
| Z. Naturforsch. 40b, 722—725 (1985); eingegangen am 11. Februar 1985 | | |
Published
| 1985 | | |
Keywords
| Barium-1, l-dicyanoethylene-2, 2-oxo-thiolate Tetrahydrate, Synthesis, Crystal Structure | | |
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| default:Reihe_B/40/ZNB-1985-40b-0722.pdf | | | Identifier
| ZNB-1985-40b-0722 | | | Volume
| 40 | |
31 | Author
| U. W. Becker, J. Felsche, G. Huttner, O. Scheidsteger | Requires cookie* | | Title
| Preparation and Crystal Structure of a New Mixed Valence Cerium Germanate Ce2 + Ce! + [Ge0 4 ]3[Ge20 7 ]2[Ge 3 0 1 o]  | | | Abstract
| Opaque blue crystals of a new mixed valence cerium germanate have been prepared at elevated temperatures (1555 K) under careful thermoanalytical control. Single crystal structure analysis shows three different types of germanate anions [Ge0 4 ] 4 ~, [Ge 2 0 7 ] 6 ~ and [Ge 3 O 10 ] 8 ~, all ger-manium atoms being in tetrahedral coordination. Due to the larger number of oxygens per unit cell (Ce 2 Ge 2 0 72), with all the oxygens unambiguously located by X-ray single crystal structure analysis, this phase differs significantly from the corresponding cerium(III) germanate Ce 2 Ge 2 0 7 , which shows [Ge0 4 ] 4_ and [Ge 3 Oi 0 ] 8 ~, but no [Ge 2 0 7 ] 6 ~ ditetrahedral groupings. | | |
Reference
| Z. Naturforsch. 40b, 755—761 (1985); received January 30/March 3 1985 | | |
Published
| 1985 | | |
Keywords
| X-Ray, Crystal Structure, Mixed Valence Cerium, Heavy Atom Layer Structure, Thermoanalysis | | |
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| default:Reihe_B/40/ZNB-1985-40b-0755.pdf | | | Identifier
| ZNB-1985-40b-0755 | | | Volume
| 40 | |
32 | Author
| KlausD. Ieter Scherfise, FrankW. Eller, Kurt Dehnicke | Requires cookie* | | Title
| Die  | | | Abstract
| Kristallstrukturen von [(CH3)P(C6H5)3][C(N02)3] und [(ICH2)P(C6H5)3][C (N 0 2)3] Crystal Structures of [(CH3)P(C6H ?)3][C(N0 2)3] and [(IC H 2)P(C 6H 5)3][C(N 0 2)3] The title compounds and the trinitro methanide salts with PPh4~ and N-methyl pyridinium cations are prepared from K[C(NOi)3] and the chlorides of the organic cations in aqueous solu tion. They form thermally stable, yellow crystalline solids. The IR spectra are reported. The crystal structures of [(CH3)P(C6H 5)3][C(N0 2)3] (2) and [(ICH2)P(C6H 5)3][C(N0 2)3] (3) are deter mined by the aid of X-ray methods. 2: space group P2,/c, Z = 4; a = 825, b = 1404, c = 1771 pm; ß = 97.4°; 1891 independent observed reflexions. R — 0.063. 3: space group P 2t/c, Z = 4; a = 848, b = 1364, c -1869 pm; ß = 99.9°; 2380 independent observed reflexions. R = 0.036. Both compounds are ionic and consist of [(CH3)P(C6H5)3]® and [(ICH2)P(C6H5)3] cations, resp., without special features, and trinitro methanide ions. In the anions the carbon atoms are almost coplanar with the N-atoms of the nitro groups with mean C -N bond lengths of 139 pm and mean NCN bond angles of 120°, suggesting sp2 hybridisation. In 3 the torsional angles between CN3 plane and the N 0 2 groups range from 15° to 32°, whereas in 2 two of the N 0 2 groups are almost coplanar with the CN3 moiety (dihedral angles 0.3° and 8.1°) and one nitro group is disordered in two positions (dihedral angles 15.8° and 74.7°). | | |
Reference
| Z. Naturforsch. 40b, 906—912 (1985); eingegangen am 10. April 1985 | | |
Published
| 1985 | | |
Keywords
| (Methyl)triphenylphosphonium Trinitromethanide, (Iodomethyl)triphenylphosphonium Trinitromethanide, Preparation, Crystal Structure, IR Spectra | | |
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| default:Reihe_B/40/ZNB-1985-40b-0906.pdf | | | Identifier
| ZNB-1985-40b-0906 | | | Volume
| 40 | |
33 | Author
| Jürgen Hanich, Wolfgang Willing, Ulrich Müller, Kurt Dehnicke, Dieter Rehder | Requires cookie* | | Title
| Cyclothiazeno-Vanadiumdibromid, VBr2(N3S2) Cyclo-Thiazeno Vanadium Dibromide, V B r2(N 3 S2)  | | | Abstract
| V B r 2(N 3S2) was synthesized by reaction o f VC12(N 3S2) with M e 3SiBr. It reacts with PPh4B r in dibromomethane solution to form (P P h 4) 2[V B r 3(N 3S2) ] 2. The compounds were characterized by their IR and 51V N M R spectra. The crystal structure o f V B r 2(N 3S2) was determined by X-ray diffraction (2060 reflexions, R = 0.114). Crystal data: triclinic, space group P I , a — 586.4, b = 794.2, c — 744.6 pm, a = 89.25, ß = 108.58, y — 99.67°, Z = 2. The vanadium atoms form planar, six-membered rings with the N 3S2 groups, with short V N distances (172 and 185 pm). Bromine-bridged dimers are associated via V —N links to form chains in a similar way as in some tetrahalides. The structure is similar to that o f VC12(N 3S2), but the chains are rotated by 17° along their axes. | | |
Reference
| Z. Naturforsch. 40b, 1457—1462 (1985); eingegangen am 2. Juli 1985 | | |
Published
| 1985 | | |
Keywords
| Cyclo-Thiazeno Vanadium Dibrom ide, Synthesis, IR Spectra, 51V N M R Spectra, Crystal Structure | | |
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| default:Reihe_B/40/ZNB-1985-40b-1457.pdf | | | Identifier
| ZNB-1985-40b-1457 | | | Volume
| 40 | |
34 | Author
| Achim Müller, Erich Krickemeyer, Rainer Jostes, Hartmut Bögge, Ekkehard Diemann, Ulrich Bergmann | Requires cookie* | | Title
| Über [Co4S3 (SO)(CN)12]8 : bemerkenswerte Bildung eines Clusters und eines "SO"-Liganden sowie Relevanz zum Promotor-Effekt bei der HDS-Katalyse [Co4S3(SO )(CN )12]8-: A Remarkable Formation of a Cluster and a "SO " Ligand and its Relevance to the Promotor Effect of HDS Catalysis  | | | Abstract
| The preparation of K8[Co4S3(SO)(C N)12] • 4 H 20 (by cyanolysis of "cobalt sulfide") and its properties (vibrational, U V/VIS and ESCA spectra, magnetic and thermogravimetric data, and crystal structure) are reported. The formation of a "SO " ligand through air oxidation is discussed with regard to the promoting effect of Co in the CoMoS phase of the hydrodesulfurization (HDS) catalyst. | | |
Reference
| Z. Naturforsch. 40b, 1715 (1985); eingegangen am 24. Juni/18. September 1985 | | |
Published
| 1985 | | |
Keywords
| Sulfido Cluster, Metal Sulfides, HDS (Hydrodesulfurization) Catalysis, Crystal Structure, Amorphous Substances | | |
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| default:Reihe_B/40/ZNB-1985-40b-1715.pdf | | | Identifier
| ZNB-1985-40b-1715 | | | Volume
| 40 | |
35 | Author
| Winfried Hinrichs, Jürgen Kopf, Klaus-Wilhelm Stender, Günter Klar | Requires cookie* | | Title
| Selbststapelnde Systeme, I 4 a Compound with Radical Cations and Polyiodide Chains  | | | Abstract
| ,4' ,5,5'-Tetramethoxy-2,2'-dithiobiphenyl-Iod (6/7), eine Verbindung mit Radikalkationen und Polyiodidketten Selfstacking Systems, I 4,4',5,5'-Tetramethoxy-2,2'-dithiobiphenyl-Iodine (6/7), | | |
Reference
| (Z. Naturforsch. 40b, 39—44 [1985]; eingegangen am 20. September 1984) | | |
Published
| 1985 | | |
Keywords
| 4, 4', 5, 5'-Tetramethoxy-2, 2'-dithiobiphenyl-Iodine (6/7), Molecular and Crystal Structure, Self-stacking Systems, Polyiodide Chains | | |
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| default:Reihe_B/40/ZNB-1985-40b-0039.pdf | | | Identifier
| ZNB-1985-40b-0039 | | | Volume
| 40 | |
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