| 2 | Author
| Birgit Lehnis, Joachim Strähle | Requires cookie* | | Title
| Synthese und Kristallstruktur von C83(AuBr 4 ) 2 Br3 Synthesis and Crystal Structure of Cs3(AuBr4) 2 Br 3  | | | Abstract
| Cs3(AuBr4)2Br3 is obtained in the form of red needles by adding the stoichiometric amount of CsBr to a solution of HAuBr4 and Br3~ in aqueous HBr. The salt decomposes slowly at room temperature to form a mixed-valent, cubic bromo aurate(I,III), in which the linear AuBr 2 ~ ions are partially substituted by Br3~ ions. At 140 °C Cs 2 Au 2 Bre and CsBr are formed. Cs3(AuBr4) 2 Br3 crystallizes monoclinic with four formula units in the space group P2i/c. The structure is built up by AuBr 4 ~ and Br3~ anions and Cs+ cations. An average Au-Br distance of 242.2 pm was found for the square planar AuBr 4 ~ ion. The linear Br3~ groups are almost symmetrical with Br-Br distances of 254.0 and 256.2 pm. Therefore only two vibrations are observed in the IR spectrum: Vas = 172, <5 = 56 cm -1 . The absorptions of the AuBr 4 _ groups are: vas = 250, <5as= 113, y — 102 cm -1 . | | |
Reference
| Z. Naturforsch. 36b, 1504—1508 (1981); eingegangen am 8. September 1981 | | |
Published
| 1981 | | |
Keywords
| Synthesis, IR Spectra, Crystal Structure | | |
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| default:Reihe_B/36/ZNB-1981-36b-1504.pdf | | | Identifier
| ZNB-1981-36b-1504 | | | Volume
| 36 | |
3 | Author
| Gertrud Kiel | Requires cookie* | | Title
| Preparation and Crystal Structure of SbCl3 * I2 * 1,4-Dithiane  | | | Abstract
| The darkred compound SbCl3 • I2 • S2C4H8 has been prepared and its crystal structure determined. This new compound crystallizes in the monoclinic system, space group P2i, with a = 849.2 pm, b = 904.2 pm, c = 923.6 pm and ß = 106.1° at a temperature of 113 K, and with a = 858.8(2) pm, b = 914.7(3) pm, c = 934.0(4) pm and ß = 106.62(3)° at a tem-perature of 293 K, respectively. The structure is buüt up from chains (SC2H4S-I-I-ClSbCl2) oo with a y-trigonal bipyramid around Sb. | | |
Reference
| (Z. Naturforsch. 36b, 55—58 [1981]; eingegangen am 19. August/22. Oktober 1980) | | |
Published
| 1981 | | |
Keywords
| Iodine Antimony Trichloride 1, 4-Dithiane, Crystal Structure | | |
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| default:Reihe_B/36/ZNB-1981-36b-0055.pdf | | | Identifier
| ZNB-1981-36b-0055 | | | Volume
| 36 | |
4 | Author
| Gerhard Thiele, Klaus Brodersen, Herbert Frohring | Requires cookie* | | Title
| Über Cyanohalogenomercurate der Alkalimetalle On Cyanohalogenomercurates of Alkali Metals  | | | Abstract
| The reactions between Hg(CN)2 and HgX2 in aqueous solutions of alkali halides MX (M = Na, K, Rb; X = CN, Cl, Br, I) lead to mixed cyanohalogenomercurates. | | |
Reference
| Z. Naturforsch. 36b, 180—187 (1981); eingegangen am 29. Oktober 1980 | | |
Published
| 1981 | | |
Keywords
| Cyanohalogenomercurates, Mercury Compounds, Cyano Complex, Crystal Structure | | |
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| default:Reihe_B/36/ZNB-1981-36b-0180.pdf | | | Identifier
| ZNB-1981-36b-0180 | | | Volume
| 36 | |
7 | Author
| -), Cyclotetra, Phosphazane, Werner Zeiß, Tino Kuhn, Dieter Lux, Wolfgang Schwarz, Heinz Hess | Requires cookie* | | Title
| (MePNMe)4 Mel und (MePNMe)4 2 Mel, ein Cyclotetra(A 3 .A 3 .A 3 .A 5 -) und ein Cyclotetra(A 3 .A 5 .A 3 .A 5 -phosphazan) (MePNMe)4 * Mel and (MePNMe)4 * 2 Mel, a Cyclotetra  | | | Abstract
| (2) with three P 111 and one P v , and (3) with two P In and P v atoms are prepared from 1 with methyl iodide. NMR spectra of 2 are compared with those of the recently prepared [1] 4. The crystal structure of 3 shows the molecule to have a crystallographic inversion centre. Thus cis-trans isomerisation must have taken place during the working up procedure. Alkylation has severe consequences on bond distances and bond angles of the cyclotetraphosphazane ring system, in contrast to M(CO)s complexation at the same positions as shown in a similar case recently [8]. | | |
Reference
| Z. Naturforsch. 36b, 561—565 (1981); eingegangen am 9. Dezember 1980 | | |
Published
| 1981 | | |
Keywords
| Cyclotetraphosphazanes, NMR Spectra, Crystal Structure Cyclotetraphosphazanes | | |
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| default:Reihe_B/36/ZNB-1981-36b-0561.pdf | | | Identifier
| ZNB-1981-36b-0561 | | | Volume
| 36 | |
8 | Author
| Eberhard Schweda, Joachim Strähle | Requires cookie* | | Title
| Nitrido-azido-Komplexe des Molybdäns(VI) Synthese und Kristallstruktur von MoN(N3)3(NC5H5) Nitrido Azido Complexes of Molybdenum (VI) Synthesis and Crystal Structure of MoN(N3)3(NC5H5)  | | | Abstract
| The explosive nitrido azido complexes MoN(N3)Cl2 • py and MoN(N3)3py are prepared by the reaction of MoCLi(py)2 with (CH3)3SiN3 in 1,2-dichloroethane. Both compounds hydrolyze quickly in moist air. After separation of the insoluble, black MoN(N3)Cl2 • py from the solution of MoN(N3)3py, the latter can be obtained in form of monoclinic, red crystals of the space group C2/c. Its structure consists of monomeric complexes, wherein the Mo atom has a square pyramidal coordination. The nitrido ligand occupies the apex and forms a strong multiple bond of 163.4 pm to the Mo atom. cr-Bonds of different strength exist between the Mo atom and the basal ligands: M0-N3 — 204.3 pm; Mo-py = 225.8 pm. The a-N atoms of the azido groups are sp 2 hybridized, with their lone pair pointing away from the nitrido ligand. The pyridine ligand forms an angle of 61.6° to the basal plane of the coordination polyhedron. | | |
Reference
| Z. Naturforsch. 36b, 662—665 (1981); eingegangen am 10. März 1981 | | |
Published
| 1981 | | |
Keywords
| Synthesis, Crystal Structure, Molybdenum Nitrido Azido Complexes | | |
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| default:Reihe_B/36/ZNB-1981-36b-0662.pdf | | | Identifier
| ZNB-1981-36b-0662 | | | Volume
| 36 | |
9 | Author
| Günther Eulenberger | Requires cookie* | | Title
| Tl2Sn2S5, a Thallium(I) Thiostannate(IV) with Fivefold Coordinated Tin  | | | Abstract
| The new compound Tl2Sn2Ss was prepared by fusion of a stoichiometric mixture of the elements followed by prolonged heating at 300 °C. The compound crystallizes in the monoclinic system in space group C2/c with lattice constants a — 11.115(2), 6 = 7.723(1), c = 11.492(2) A, and ß = 108.60(1)° (Z = 4). The Sn atoms are coordinated by five S atoms forming a considerably distorted trigonal bipyramid (mean distance Sn-S: 2.497 Ä). By common edges the SnSö bipyramids are linked into chains extending in the [110] and [1T0] directions, respectively. The chains are cross-linked by sharing the remaining equatorial vertices of the SnSs bipyramids, thus forming a three-dimensional framework which is related to that described for NajS^Sg [1]. The T1 atoms located in channels running parallel to the b axis are surrounded by nine S atoms. The distances Tl-S vary from 3.073 to 3.897 A. | | |
Reference
| Z. Naturforsch. 36b, 687—690 (1981); eingegangen am 10. März 1981 | | |
Published
| 1981 | | |
Keywords
| Ternary Thallium Sulfide, Thiostannate, Crystal Structure, Trigonal Bipyramidal Coordination | | |
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| default:Reihe_B/36/ZNB-1981-36b-0687.pdf | | | Identifier
| ZNB-1981-36b-0687 | | | Volume
| 36 | |
12 | Author
| Otto Cullmann, Heinz-Walter Hinterkeuser, Hans-Uwe Schuster | Requires cookie* | | Title
| Hans  | | | Abstract
| The ternary compound /M^ZnGe was prepared and its structure determined from powder and single crystal data. The compound crystallizes in a modified NaßAs type structure, space group PlTm 1-Djjd-The cell parameters are: a = 432.6 pm, c — 1647.0 pm, c/a= 3.83. A phase transition between a-and /S-L^ZnGe was found and the reaction of the elements lithium, zinc and germanium to a-Li2ZnGe was followed by differential thermal analysis. The temperatures and the enthalpies of transition and fusion were determined. Vorbemerkung | | |
Reference
| Z. Naturforsch. 36b, 917—921 (1981); eingegangen am 20. Mai 1981 | | |
Published
| 1981 | | |
Keywords
| Ternary Intermetallic Compounds, Crystal Structure, Phase Transition | | |
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| default:Reihe_B/36/ZNB-1981-36b-0917.pdf | | | Identifier
| ZNB-1981-36b-0917 | | | Volume
| 36 | |
14 | Author
| Bernt Krebs, Hans-Joachim Wallstab | Requires cookie* | | Title
| Thio-hydroxoanionen des Germaniums: Darstellung, Struktur und Eigenschaften von Na2GeS2(OH)2 * 5 H20 Thio-hydroxo Anions of Germanium: Preparation, Structure and Properties of Na2GeS2(OH)2 * 5 H20  | | | Abstract
| Pure thio-hydroxo-germanates can be prepared from aqueous solutions by reactions of stoichiometric amounts of either sodium sulfide and Ge02, or NaOH and GeS2. The preparation of colourless crystalline Na2GeS2(OH)2 • 5 H20 is reported. The compound is characterized by a single-crystal X-ray structure analysis. It is orthorhombic, space group Pbcn, with a = 10.752(2), 6= 13.787(2), c = 14.150(2) A. The structure contains novel monomeric GeS2(OH)2 2-anions with Ge-S bond distances of 2.150(1) and 2.145(1) Ä and with Ge-0 lengths of 1.809(3) and 1.815(3) A. An extensive S • • • HO-and O -HO-hydrogen bond system connects the anions with the octahedrally coordinated Na + ions. The vibra-tional spectra are reported. The symmetric GeS2 andGe02 stretching vibrations in the anion are observed at 415 and 618 cm -1 . | | |
Reference
| Z. Naturforsch. 36b, 1400—1406 (1981); eingegangen am 14. Mai 1981 | | |
Published
| 1981 | | |
Keywords
| Thiogermanates, Thio-hydroxo Anions, Crystal Structure, Germanium | | |
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| default:Reihe_B/36/ZNB-1981-36b-1400.pdf | | | Identifier
| ZNB-1981-36b-1400 | | | Volume
| 36 | |
15 | Author
| Siegfried Pohl, Ulrich Seyer, Bernt Krebs | Requires cookie* | | Title
| Sulfidhalogenide des Germaniums: Darstellung und Strukturen von Ge4S6Br4 und Ge4S6I4 Thiohalides of Germanium: Preparation and Structures of Ge4SeBr4 and Ge4S6l4  | | | Abstract
| The reaction of GeX4 (X = Br, I) and H2S in CS2 yields Ge4S6Br4 (1) and Ge4S6Li (2). The crystal structures of 1 and 2 were determined from single crystal X-ray data (1: PT, a == 880.6, b = 993.4, c = 1010.6 pm, a = 86.05, ß = 64.00, y = 89.87°, V = 792 • 10 6 pm 3 , Z = 2,2 : P"3, a = 1064.0, c = 946.1 pm, V = 928 • 10 6 pm 3 , Z = 2). They consist of isolated adamantane-like molecules. | | |
Reference
| Z. Naturforsch. 36b, 1432—1436 (1981); eingegangen am 23. Mai 1981 | | |
Published
| 1981 | | |
Keywords
| Thiohalides of Germanium, Synthesis, Crystal Structure | | |
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| default:Reihe_B/36/ZNB-1981-36b-1432.pdf | | | Identifier
| ZNB-1981-36b-1432 | | | Volume
| 36 | |
16 | Author
| Edgar Niecke, Anke Nickloweit-Lüke, Reinhold Rüger, Bernt Krebs, Helmut Grewe | Requires cookie* | | Title
| .2A 3 .3A 3 -Azadiphosphiridine -Synthese, Kristallstruktur und Eigenschaften 1,2 A 3 ,3 x 3 -Azadiphosphiridines -Synthesis, Crystal Structure and Proj)erties  | | | Abstract
| 1,2 A 3 ,3 A 3 -Azadiphosphiridines are avaüable by elimination of hydrogenhalide from ß-and y-functional molecular frameworks and by 1 + 2 cycloaddition of phosphinidenes towards aminoiminophosphanes. In contrast to other three-membered phosphorus com-pounds, azadiphosphiridines decompose by 2 +1 cycloreversion to aminoiminophosphanes and phosphinidenes. The molecular structure of an azadiphosphiridine demonstrates the trans arrangement of the exocyclic ligands and the planarity of the endocyclic nitrogen. | | |
Reference
| Z. Naturforsch. 36b, 1566—1574 (1981); eingegangen am 13. Juli 1981 | | |
Published
| 1981 | | |
Keywords
| Azadiphosphiridines, Cyclisation, Thermal Decomposition, NMR Spectra, Crystal Structure | | |
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| default:Reihe_B/36/ZNB-1981-36b-1566.pdf | | | Identifier
| ZNB-1981-36b-1566 | | | Volume
| 36 | |
20 | Author
| PeterG. Jones, Einhard Schwarzmann, GeorgeM. Sheldrick, Harald Timpe | Requires cookie* | | Title
| Darstellung und Struktur von Di-gold(III)bis(selenit)(diselenit), Au2(Se0 3 )2(Se 2 05) Preparation and Crystal Structure of Di-gold(III)bis(selenite) Diselenite, Au2(Se0 3 )2(Se 2 05)  | | | Abstract
| The compound Au 2 (Se0 3) 2 (Se 2 0s) was pre-pared from gold metal and seienic acid at 553 K. The crystal structure [C2/c, a = 2034.4(5), b = 413.0(1), c = 1325.4(3) pm, ß = 115.88(3)°, Z = 4] was refined to R = 0.035. Both gold atoms lie on crystallographic centres of sym-metry and show square planar coordination (Au-0 196.9-201.3 pm). The extended structure consists of three cross-linked systems of the form [ • • • -Au-(selenite or diselenite) -Au----]. | | |
Reference
| Z. Naturforsch. 36b, 1050—1051 (1981); eingegangen am 19. Mai 1981 | | |
Published
| 1981 | | |
Keywords
| Sealed-tube Synthesis, Crystal Structure, Selenite Ligand, Diselenite Ligand | | |
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| default:Reihe_B/36/ZNB-1981-36b-1050_n.pdf | | | Identifier
| ZNB-1981-36b-1050_n | | | Volume
| 36 | |
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