| 181 | Author
| Eberhard Schweda, Joachim Strähle | Requires cookie* | | Title
| Synthese und Kristallstruktur eines Triazido-nitrido-bipyridyl-Komplexes des Molybdäns(VI): MoN(N3)3(bipy) Synthesis and Crystal Structure of a Triazido Nitrido Bipyridyle Complex of Molybdenum(VI): MoN(N3)3(bipy)  | | | Abstract
| The reaction of MoCl^bipy) with an excess of (CH3)3SiN3 in 1,2-dichloroethane results in the formation of a mixture of MoN(N3)3(bipy) and Mo(N2)Cl2(bipy). The latter is an insoluble, brownish compound of yet unknown structure. MoN(N3)3(bipy) is very soluble in 1,2-dichloroethane and easily hydrolysed. It can be crystallized from toluene in the form of explosive, red crystals of the space group P 2i\n. The crystal structure is built up by monomeric complexes, in which the Mo atom has a distorted sixfold coordination. The three azido groups are located eis to the nitrido ligand, with their free electron pair at the a-N-atom pointing away from the closely neighbouring nitrido ligand. The bipyridine forms two bonds of quite different length (224,0 and 241,9 pm) with the Mo atom, as trans to the triply bounded nitrido ligand (Mo = N = 164,2 pm) only a weak interaction is possible. | | |
Reference
| Z. Naturforsch. 35b, 1146—1149 (1980); eingegangen am 2. Juni 1980 | | |
Published
| 1980 | | |
Keywords
| Synthesis, Crystal Structure, Molybdenum Nitrido Triazide | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/35/ZNB-1980-35b-1146.pdf | | | Identifier
| ZNB-1980-35b-1146 | | | Volume
| 35 | |
184 | Author
| William Clegg, Michael Hesse, Uwe Klingebiel, GeorgeM. Sheldrick, Lutz Skoda | Requires cookie* | | Title
| Ringkontraktion am Cyclotrisilazan -System - Synthese und Molekülstrukturen zweifach silylverknüpfter Cyclodisilazane Ring Contraction in the Cyclotrisilazane System - Synthesis and Molecular Structures of Silyl-Bridged Cyclodisilazanes  | | | Abstract
| l-(Fluorodiorganylsilyl)-2,2,4,4,6,6-hexamethyl-3-(trimethylsilyl)cyclotrisilazanes react with butyllithium to give the corresponding lithium salts. Ring contraction of the lithium salts with formation of lithiated (fluorodiorganylsilyl)amino-substituted four-membered rings is observed in THF solution. The dimerisation of these cyclodisilazanes with elimina-tion of LiF is demonstrated by crystal structure determinations of three products. Monoclinic and triclinic crystalline modifications of one compound could be isolated. | | |
Reference
| Z. Naturforsch. 35b, 1359—1365 (1980); eingegangen am 29. Juli 1980 | | |
Published
| 1980 | | |
Keywords
| Cyclotrisilazanes, Ring Contraction, Cyclodisilazanes, Crystal Structures | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/35/ZNB-1980-35b-1359.pdf | | | Identifier
| ZNB-1980-35b-1359 | | | Volume
| 35 | |
185 | Author
| Annegret Lipka, Hartmut Wunderlich | Requires cookie* | | Title
| Die Kristallstruktur des l:l-Komplexes von Antimontrichlorid und 2.2'-Bipyridin The Crystal Structure of the 1:1 Complex of Antimony Trichloride and 2,2'-Bipyridine  | | | Abstract
| The crystal structure of the complex compound of SbCL with a chelating bipyridyl group was determined. Sb(CioH8N2)Cl3 crystallizes in the space group P2i/c with a = 818.9(4), b = 695.8(7), c = 2331.3(12) pm, ß = 103.59(4)° and Z = 4 molecules per unit cell. The SbCL fragment is T-shaped with <Sb-Cl> at 254.7 pm. Taking into account also the N atoms of the chelating 2,2'-bipyridyl group (<Sb-N> = 228.1 pm) and an inter-molecular Sb-Cl contact at 334.0 pm the Sb coordination is distorted octahedral. | | |
Reference
| Z. Naturforsch. 35b, 1548—1551 (1980); eingegangen am 22. August 1980 | | |
Published
| 1980 | | |
Keywords
| Stereochemistry, Crystal Structure, Antimontrichloride, 2, 2'-Bipyridine | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/35/ZNB-1980-35b-1548.pdf | | | Identifier
| ZNB-1980-35b-1548 | | | Volume
| 35 | |
186 | Author
| M. Pušelj, Z. Ban | Requires cookie* | | Title
| Ternäre Gamma-Messing Phasen in den Systemen Calcium-M IB(IIB) -Quecksilber New Ternary Gamma-Brass Phases in the Systems Ca-M iB(nB)_Hg  | | | Abstract
| A series of new ternary intermetallic com-pounds of the general composition CaißMi8IB(IlB)_Hg18 (M = Zn, Cd, Hg, Cu, Ag and Au) has been identified. The X-ray powder diffraction patterns were indexed on a basis of primitive cubic unit cells. From the X-ray data and density measure-ments it is concluded that these phases belong to the partially disordered (Ml B (HB) and Hg) gamma-brass structure type D83. | | |
Reference
| Z. Naturforsch. 35b, 1594—1595 (1980); eingegangen am 18. Juli 1980 | | |
Published
| 1980 | | |
Keywords
| Crystal Structure, Mercury, Amalgams, X-ray, Calcium | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/35/ZNB-1980-35b-1594_n.pdf | | | Identifier
| ZNB-1980-35b-1594_n | | | Volume
| 35 | |
187 | 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 | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/36/ZNB-1981-36b-0055.pdf | | | Identifier
| ZNB-1981-36b-0055 | | | Volume
| 36 | |
188 | 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 | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/36/ZNB-1981-36b-0180.pdf | | | Identifier
| ZNB-1981-36b-0180 | | | Volume
| 36 | |
191 | 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 | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/36/ZNB-1981-36b-0561.pdf | | | Identifier
| ZNB-1981-36b-0561 | | | Volume
| 36 | |
192 | 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 | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/36/ZNB-1981-36b-0662.pdf | | | Identifier
| ZNB-1981-36b-0662 | | | Volume
| 36 | |
193 | 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 | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/36/ZNB-1981-36b-0687.pdf | | | Identifier
| ZNB-1981-36b-0687 | | | Volume
| 36 | |
196 | 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 | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/36/ZNB-1981-36b-0917.pdf | | | Identifier
| ZNB-1981-36b-0917 | | | Volume
| 36 | |
198 | 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 | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/36/ZNB-1981-36b-1400.pdf | | | Identifier
| ZNB-1981-36b-1400 | | | Volume
| 36 | |
199 | 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 | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/36/ZNB-1981-36b-1432.pdf | | | Identifier
| ZNB-1981-36b-1432 | | | Volume
| 36 | |
200 | 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 | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/36/ZNB-1981-36b-1566.pdf | | | Identifier
| ZNB-1981-36b-1566 | | | Volume
| 36 | |
|