| 202 | Author
| Ursula Frank-Cordier, Gerhard Cordier, Herbert Schäfer | Requires cookie* | | Title
| Die Struktur des Na7Ga13-I und ein Konzept zur bindungsmäßigen Deutung The Structure of NavGai3-I and its Characterization by a Bonding Scheme  | | | Abstract
| The new compound NayGa^-I crystallizes in the trigonal-rhombohedral system, space group R 3 m, with the constants a = 1496.5(3) pm, c = 3893(1) pm, c/o = 2.60. The Ga atoms form Gai2 icosahedra and Gais clusters, connected to a threedimensional net. The arrangement of these clusters is related to the MgCu2 structure. The Na content of this compound correlates with the number of electrons necessary for a stable electron configuration in the Ga partial structure. The BaAl4 type structure of NaGa4 has been confirmed by single crystal data. | | |
Reference
| (Z. Naturforsch. 37b, 119—126 [1982]; eingegangen am 5. Oktober 1981) | | |
Published
| 1982 | | |
Keywords
| Natrium Gallides, Crystal Structure, Bonding Scheme | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/37/ZNB-1982-37b-0119.pdf | | | Identifier
| ZNB-1982-37b-0119 | | | Volume
| 37 | |
204 | Author
| Doris Bodenstein, Axel Brehm, PeterG. Jones, Einhard Schwarzmann, GeorgeM. Sheldrick | Requires cookie* | | Title
| Darstellung und Kristallstruktur vom Arsen(III)arsen(V)oxidhydroxid As305(0H) Preparation and Crystal Structure of the Arsenic(III) Arsenic(V) Oxide Hydroxide As305(0H)  | | | Abstract
| The title compound was prepared by heating the hydrolysis products of AS2O4 in a sealed tube. The crystal structure was determined and refined to R = 0.058 [P2j./c, a = 1250.4(6), b = 459.3(2), c = 1097.6(6) pm, ß = 118.08(5)°, Z = 4]. The structure consists of infinite layers, containing pyramidal As(III)03 and tetrahedral As(V)04 groups, and stabilised by hydrogen bonding. | | |
Reference
| Z. Naturforsch. 37b, 138—140 (1982); eingegangen am 7. Oktober 1981 | | |
Published
| 1982 | | |
Keywords
| Sealed-Tube Synthesis, Crystal Structure, Arsenic, Oxide | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/37/ZNB-1982-37b-0138.pdf | | | Identifier
| ZNB-1982-37b-0138 | | | Volume
| 37 | |
206 | Author
| William Clegg, Uwe Klingebiel, GeorgeM. Sheldrick | Requires cookie* | | Title
| Cyclisierungsreaktionen lithiierter Fluorsilanole und Aminofluorsiloxane - Kreuzdimerisierung eines Silicenium-Ylids Cyclisation Reactions of Lithiated Fluorosilanols and Aminofluorosiloxanes - Cross-dimerisation of a Silicenium-Ylid  | | | Abstract
| KOH reacts with bis(isopropyl-trimethylsilyl)-amino-difluorosilane to give the fluoro-silanol 1. An aminofluorosiloxane 2 is obtained in the reaction of [(Me3Si)2N]2SiF2 with KOH via a 1,3-silyl-group migration. The four-membered SiOSiN ring 5 can be prepared in several steps from 1. Six-membered SiO rings 8-10 are formed in the reaction of 1,3-fluorosilanols 6 and 7 with butyllithium. Lithiated 2 reacts with PCI3 to give a four-membered P2N2 ring 11, and with 2-methyl-2-propenal to give two isomeric (2 + 4) cycloadducts 12 and 13. The silicenium ylid formed initially by thermal elimation of LiF from lithiated 2 in PE/THF cross-dimerises to give a Si2N2 ring 14. If the reaction is carried out in n-heptane, the product after recrystallisation from acetone, 16, is an isomer of 14. The crystal structures of 14 and 16 have been determined. | | |
Reference
| Z. Naturforsch. 37b, 423—431 (1982); eingegangen am 14. Dezember 1981 | | |
Published
| 1982 | | |
Keywords
| Fluorosüanols, Aminofluorosiloxanes, Cyclisation, Cross-dimerisation, Crystal Structure | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/37/ZNB-1982-37b-0423.pdf | | | Identifier
| ZNB-1982-37b-0423 | | | Volume
| 37 | |
208 | Author
| PeterG. Jones | Requires cookie* | | Title
|  | | | Abstract
| The crystal structure of (OC)AuCl has been determined and refined to R 0.037 (space group Cmem, a = 407.1(1), b = 1042.2(4), c —532.1(3) pm, Z =4). The structure consists of discrete, exactly linear molecules; all atoms lie on the special positions 0, y, 1/4. The bond lengths involving the light atoms are affected by libration. The shortest Au — Au contacts between molecules are 338 pm. | | |
Reference
| Z. Naturforsch. 37b, 823—824 (1982); received March 8 1982 | | |
Published
| 1982 | | |
Keywords
| Crystal Structure, Carbonyl, Gold(I) | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/37/ZNB-1982-37b-0823.pdf | | | Identifier
| ZNB-1982-37b-0823 | | | Volume
| 37 | |
209 | Author
| HeinzW. Rotter, Gerhard Thiele | Requires cookie* | | Title
| Fehlordnung von Kationen und Kristallwasser bei kubischen Alkalitetrabromo-und -iodothallaten(III) Disorder of Cations and Water Molecules in Cubic Tetrabromo-and -iodothallates  | | | Abstract
| Tetrabromo-and -iodothallates(III) of the alkali cations crystallise from aqueous solutions as cubic hydrates MTlX4-nH20 (M = Li, Na, K, Rb, Cs, NH4; X — Br, I; n — 1-2). The tetraiodothallates retain their cubic structure on dehydratisation, while the tetrabromothallates undergo structural changes. The X-ray structure analyses of RbTlBr4 • H20, NH4TlBr4 • 2HoO and KTlBr4 • 2H20 (—50 °C) showed that these com-pounds consist of a three-dimensional framework of TlBr4 tetrahedra and MBrjo ikosahedra which reminds of zeolites. In cavities of this framework 2/3 of the alkali cations and the crystal water molecules are accommodated in a disordered manner. | | |
Reference
| Z. Naturforsch. 37b, 995—1004 (1982); eingegangen am 3. März 1982 | | |
Published
| 1982 | | |
Keywords
| Thallium, Tetrabromothallate, Disorder, Tetraiodothallate, Crystal Structure | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/37/ZNB-1982-37b-0995.pdf | | | Identifier
| ZNB-1982-37b-0995 | | | Volume
| 37 | |
210 | Author
| Ulrich Müller, ChristinaNorbert Mronga, Kurt Schumacher, Dehnicke | Requires cookie* | | Title
| Die Kristallstrukturen von PPh4[SnCl3] und PPh4[SnBr3] The Crystal Structures of PPh4[SnCl3] and PPh4[SnBr3]  | | | Abstract
| PPh4[SnCl3] and PPh4[SnBr3] were prepared by reaction of PPh4X with SnX2 in CH2X2 solutions (X — Cl, Br). The vibrational spectra of the [SnX3] e ions show three SnX3 stretching frequencies, which is caused by deviations from the ideal C3v symmetry. In the crystal structure determinations these deviations show up by slightly different Sn-X bond lengths which are explained by differing hydrogen bridges to phenyl-H atoms. The isotypic crystal structures of both compounds were determined and refined from X-ray diffraction data (R values: 0.042 and 0.034). Although triclinic (space group Pi), the structures are closely related to the tetragonal AsPh4[RuNCl4] structure type. Very pure SnBr2 is prepared by the reaction of PPh4[SnBr3] with AlBr3 in CH2Br2 solution. | | |
Reference
| Z. Naturforsch. 37b, 1122—1126 (1982); eingegangen am 19. Mai 1982 | | |
Published
| 1982 | | |
Keywords
| Preparation, Tetraphenylphosphonium Trihalo Stannates, Vibrational Spectra, Crystal Structures | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/37/ZNB-1982-37b-1122.pdf | | | Identifier
| ZNB-1982-37b-1122 | | | Volume
| 37 | |
211 | Author
| Brigitte Eisenmann, Hanna Jordan, Herbert Schäfer | Requires cookie* | | Title
| Neuartige Ge2P4 8 ~-bzw. Ge2As4 8 -Anionen in Ba2GeP2 und Ba2GeAs2 New Ge2P4 8 ~ and Ge2As4 8_ Anions in Ba^GeP? and Ba 2 GeAs2  | | | Abstract
| The new compounds Ba2GeP2 and Ba2GeAs2 crystallize in the monoclinic system (space group P2i/c) with lattice constants: Ba2GeP2: a = 855.3 ± 0.5 pm, b = 951.5 ± 0.5 pm, c = 748.1 ± 0.5 pm, ß = 105.95 ± 0.08°. Ba2GeAso: a = 875.7 ± 0.5 pm, b = 970.0 ± 0.5 pm, c = 700.7 ± 0.5 pm, ß = 100.03 ± 0.08'. There are characteristic isolated Ge2P4 8_ and Ge2As4 8 ~ anions, which are arranged in sheets. | | |
Reference
| Z. Naturforsch. 37b, 1221—1224 (1982); eingegangen am 19. April 1982 | | |
Published
| 1982 | | |
Keywords
| Intermetallic Compounds, Zintl Phases, Crystal Structure | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/37/ZNB-1982-37b-1221.pdf | | | Identifier
| ZNB-1982-37b-1221 | | | Volume
| 37 | |
212 | Author
| Rainer Mattes, Kurt-Ludwig Richter | Requires cookie* | | Title
| Darstellung und Struktur des Polyvanadato-periodates Na6 [H2V2I2016] * 10 H20 Preparation and Crystal Structure of the Heteropoly Periodate Na6[H2V2I20i6] * 10 H2O  | | | Abstract
| The structure of the heteropoly periodate ion [H2V2I20i6] 6 ~ has been determined in its Na salt at —150 °C by single crystal X-ray diffraction with 1909 reflections and refined to F = 0.022 (R'= 0.028). Na6[H2V2I2Oi6] • 10 HaO crystallizes in the triclinic space group PI with a = 11.407(5), b = 8.865(3), c = 6.105(3)1, a = 82.07(3)°, /? = 84.24(4)° y = 70.23(3)°, V = 574.5 A 3 , Z = 1. The [H2V2I2Oi6] 6 ~ anion consists of edge and corner sharing 106 octahedra and VO5 square pyramids. The vibrational spectra clearly indicate the presence of VO(terminal)2 groups. | | |
Reference
| Z. Naturforsch. 37b, 1241—1244 (1982); eingegangen am 17. Mai 1982 | | |
Published
| 1982 | | |
Keywords
| Heteropoly Periodate, Vanadato Periodate, Crystal Structure | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/37/ZNB-1982-37b-1241.pdf | | | Identifier
| ZNB-1982-37b-1241 | | | Volume
| 37 | |
214 | Author
| D. Babel | Requires cookie* | | Title
| Die Kristallstruktur des Cyano-Elpasoliths [N(CH3)4]2CsFe(CN)6 The Crystal Structure of the Cyano Elpasolite [N(CH3)4]2CsFe(CN)6  | | | Abstract
| The crystal structure of the cubic compound [N(CH3)4]2CsFe(CN)6 was determined by X-ray methods: a = 2527.4(6) pm, space group Fd3c, Z = 32, Rg = 0.028 (260 independent single crystal reflections). The resulting distances within the practically undistorted Fe (CN) 6 3 ~ -octahedron are Fe-C = 193.4(6) and C-N = 115.7(7) pm. Compared to the ideal elpasolite structure of space group Fm3m, Z = 4, the octahedra are rotated by 7.4° through their 3 axis. This is discussed as caused by steric requirements of the tetramethyl-ammonium groups (N-C = 148.4(10) and 149.1(38) pm, resp.). Three quarters of them, of which also the hydrogen positions could bo located, are well oriented. The remaining quarter shows orientational disorder to approach similar contact distances as the other N(CH3)4+ ion exhibits between the methyl groups and the nitrogen ends of the anions. | | |
Reference
| Z. Naturforsch. 37b, 1534—1539 (1982); eingegangen am 11. August 1982 | | |
Published
| 1982 | | |
Keywords
| Crystal Structure, Elpasolite, Hexacyanoferrate(III) | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/37/ZNB-1982-37b-1534.pdf | | | Identifier
| ZNB-1982-37b-1534 | | | Volume
| 37 | |
215 | Author
| Joachim Pickardt, Norbert Rautenberg | Requires cookie* | | Title
| Metallkomplexe mit Hexamethylentetramin als Ligand, VI [1] Kristallstruktur von Bis-hexamethylentetramin-bisisocyanatokupfer(II), [CU(NCO)2(C6H12N4)2]  | | | Abstract
| Crystals of the complex [Cu(NCO)2(C6Hi2N4)2] could be obtained by reaction of copper-(Il)nitrate, hexamethylenetetramine, and KNCO in CHCI3 as a solvent. The crystals are triclinic, space group Cl, Z = 4, a = 1373.1(9), b = 2083.1(9), c = 642.6(3) pm, a = 91.05(4), ß = 90.54(6), y = 107.39(6)°. The copper atom is bonded to two terminal cyanato groups via the nitrogen atoms, and to two liexamethylentetramine molecules. In the solid state the coordination of the copper atom is, however, tetragonal pyramidal, because there is an additional, rather long bond to one of the hexamethylenetetramine molecules of the neighbouring complex unit, resulting in the formation of chains. | | |
Reference
| Z. Naturforsch. 37b, 1569—1572 (1982); eingegangen am 6. September 1982 | | |
Published
| 1982 | | |
Keywords
| Cupric Complexes, Isocyanato Complexes, Hexamethylenetetramine, Crystal Structure | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/37/ZNB-1982-37b-1569.pdf | | | Identifier
| ZNB-1982-37b-1569 | | | Volume
| 37 | |
216 | Author
| Rüdiger Kniep, Lutz Körte, Dietrich Mootz | Requires cookie* | | Title
| Kristallstrukturell von Verbindungen A2X2 (A = S, Se; X = Cl, Br) Crystal Structures of Compounds A2X2 (A = S, Se; X = Cl, Br)  | | | Abstract
| The crystal structures of compounds A2X2 (A = S, Se; X = Cl, Br) contain molecules X-A-A-X with dihedral angles between 83.9° and 87.4°. Three different types of molecular packing are realized: S2CI2, S2Br2 (a-Se2Br2) and /?-Se2Br2(Se2Cl2). Details of molecular geometries as well as crystal structures are discussed. | | |
Reference
| (Z. Naturforsch. 38b, 1—6 [1983]; eingegangen am 20. August 1982) | | |
Published
| 1983 | | |
Keywords
| Sulfur(I) Halides, Selenium(I) Halides, Crystal Structure | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/38/ZNB-1983-38b-0001.pdf | | | Identifier
| ZNB-1983-38b-0001 | | | Volume
| 38 | |
218 | Author
| Hans Hartl, Irene Brüdgam, Farbod Mahdjour-Hassan-Abadi | Requires cookie* | | Title
| Synthese und Strukturuntersuchungen von Iodocupraten(I): II. Diiodocuprate(I) RCuI2 mit isoherten Ketten ^ [Cul4 2~] * R 1 = N-Methylpyridinium, R 2 = Dimethyl ( 3 -dimethylamino -2 -aza -2 -propenyliden ) ammonium [1] Syntheses and Structure Analyses of Iodocuprates(I): II. Diiodocuprates(I) RCUL2 with Isolated Chains [CULI/2~]; R 1 = N-Methylpyridinium, R 2 = Dimethyl(3-dimethylamino-2-aza-2-propenyliden) Ammonium  | | | Abstract
| N-Methylpyridinium-diiodocuprate(I), CßHgNCuI^ and dimethyl(3-dimethylamino-2-aza-2-propenyliden)ammonium-diiodocuprate(I), C6H14N3CUI2, are obtained by reacting Cu with C6H8NI3 or C6H14N3I3 in acetone. Both compounds are built up by the organic cations and chains of edge sharing tetrahedra<jo[Cul4/2-]. The iodocuprate(I) anions are in intimate contact with the cations via intermolecular I • • • C interactions. Though nearly the same average Cu-I distance of 267.2 or 268.2 pm was found for both iodocuprate(I) anions there are different Cu-Cu distances (301-354 pm). | | |
Reference
| (Z. Naturforsch. 38b, 57—61 [1983]; eingegangen am 30. September 1982) | | |
Published
| 1983 | | |
Keywords
| Diiodocuprates(I), Synthesis, Crystal Structure | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/38/ZNB-1983-38b-0057.pdf | | | Identifier
| ZNB-1983-38b-0057 | | | Volume
| 38 | |
219 | Author
| Karl Wieghardt, Ursula Bossek, Martina Guttmann, Johannes Weiss | Requires cookie* | | Title
| Metallkomplexe der Liganden  | | | Abstract
| 1.4.7-Triazacyclononan-N.N .N -tris-2-ethansulfonat (TES) und 1.4.7-Triazacyclononan-N.N' .N'' -trisethylacetat (TEA). Die Kristallstrukturen von Na[Ni(TES)(H20)] • 5 H20 und Na[Cu(TES)] • 3 H20 Transition Metal Complexes Containing the Ligands 1,4,7-Triazacyclononane-N,N',N"-tris-2-ethanesulfonate (TES) and l,4,7-Triazacyclononane-N,N , ,N"-tris-ethylacetate (TEA). The Crystal Structures of Na[Ni(TES) (H20)] • 5H20 and of Na[Cu(TES)] • 3H20 The syntheses of two new, potentially hexadentate ligands with an N3O3 donor set is reported: l,4,7-triazacyclononane-N,N , ,N"-tris-2-ethanesulfonate (TES) and 1,4,7-tria-zacyclononane-N,N',N"-tris-ethylacetate (TEA). Complexes of the divalent transition metals Co(II), Ni(II), Cu(II) containing these ligands have been prepared. The kinetics of the reactions of [Co n (TEA)H20] 2 + and [Co II (TCTA)]-(TCTA= 1,4,7-triazacyclononane-N^^N'^tris-acetate) with [Fe m (CN)6] 3 ~, respectively, have been measured. A stable binuclear [Co(TEA)(CN)6Fe]~ species has been characterized in solution whereas the reaction of [Co(TCTA)]-with [Fe(CN)6] 3 -yields [Co in TCTA] and [Fe(CN)6] 4 -via an outer-sphere electron transfer reaction (k = 5,9 x 10 3 1 mol -1 sec -1 ; 25 °C, I = 0,26 M). Na[Ni(TES)H20] • 5H20 crystallizes in the triclinic space group P I (C^-No 2) with cell constants a = 806,7(4), b = 1468,4(8), c = 2317,9(8) pm, a = 72,36(4)°, ß = 83,48 (3)°, y = 81,99(4)°, and Z = 4. The nickel(II) center is in a distorted octahedral environment of a pentadentate TES ligand (N3Ü2)_and a coordinated H20. Na[Cu(TES)] 3H20 crystal-lizes in the triclinic space group P I (C^-No 2) w T ith cell constants a = 747,3(3), b — 1082,6(5), c = 1459,3(9) pm, a = 81,13(5)°, ß = 84,75(4)°, y = 79,39(3)°, and Z = 2. The copper(II) center is in a distorted quadratic pyramidal environment of a pentadentate TES ligand. Each of the complex anions contains one uncomplexed CH2-CH2-SC>3 _ group. | | |
Reference
| (Z. Naturforsch. 38b, 81—89 [1983]; eingegangen am 27. September 1982) | | |
Published
| 1983 | | |
Keywords
| Crystal Structure, O-Coordinated R-S03-group, Metal Complexes | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/38/ZNB-1983-38b-0081.pdf | | | Identifier
| ZNB-1983-38b-0081 | | | Volume
| 38 | |
220 | Author
| Hans-Jörg Deiseroth, Han Fu-Son | Requires cookie* | | Title
| Cs6Ga2Se6, ein ternäres Selenogallat(III) mit isolierten [Ga2Se6] 6 --Ionen Cs6Ga2Se6, a Ternary Selenogallate(III) with Isolated [Ga2Se6] 6_ Ions  | | | Abstract
| Cs6Ga2Se6 can be prepared from mixtures of Cs2Se and Ga2Se3. The transparent single crystals of the moisture sensitive compound (m.p. 685 °C) crystallize in the monoclinic system with a = 848.0(5), b = 1364.4(5), c = 1111.5(5) pm, ß = 126.22(5)° (T = —150 °C, Z — 2, space group P2i/c). The gallium atoms pairwisely occupy selected tetrahedral holes between layers formed by the cesium and selenium ions. This structural principle leads to the formation of double tetrahedral isolated [Ga2Se6] 6-ions. | | |
Reference
| Z. Naturforsch. 38b, 181—182 (1983); eingegangen am 15. Oktober 1982 | | |
Published
| 1983 | | |
Keywords
| Cesium Selenogallate, Crystal Structure, Thermal Properties | | |
Similar Items
| Find | | DEBUG INFO
| | | | TEI-XML for
| default:Reihe_B/38/ZNB-1983-38b-0181.pdf | | | Identifier
| ZNB-1983-38b-0181 | | | Volume
| 38 | |
|