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101Author    H. P. FritzRequires cookie*
 Title    The Stannides RE R hSn (RE = Ho -Yb) and ScTSn (T = Pd, Pt) -Structure Refinements and 119Sn Mössbauer Spectroscopy  
 Abstract    The stannides RERhSn (RE = Ho -Yb) and ScTSn (T = Pd, Pt) were prepared by reaction of the elements in sealed tantalum tubes in a high-frequency furnace, by arc-melting, or by a tin-flux technique in quartz tubes. The rhodium based stannides crystallize with the ZrNiAl type structure, space group P62m. The four structures were refined from single crystal X-ray data: a = 754.5(3), c = 377.1(1) pm, wR2 = 0.0357, 233 F 2 values for HoRhSn, a = 753.3(1), c = 372.16(8) pm, wR2 = 0.0721, 233 F 2 values for ErRhSn, a = 753.7(3), c = 369.0(2) pm, wR2 = 0.0671,233 F 2 values for TmRhSn, and a = 753.17(5), c = 366.53(4) pm, wR2 = 0.0566, 180 F 2 values for YbRhSn with 14 parameters for each refinement. ScPdSn and ScPtSn adopt the HfRhSn type, a superstructure of ZrNiAl, space group P62c: a = 747.5(1), c = 710.2(1) pm, for ScPdSn, and a = 738.37(9), c = 729.47(9) pm, wR2 = 0.0452,369 F 2 values, 18 variables for ScPtSn. Structural motifs in these stannides are transition metal centered trigonal prisms formed by the rare earth and tin atoms. While these prisms are regular in the rhodium based stannides, significant distortions occur in ScPdSn and ScPtSn. The formation of the superstructure can be ascribed to packing reasons. The shortest interatomic distances occur between the transition metal (T) and tin atoms. These atoms form three-dimensional [FSn] networks in which the rare earth atoms fill distorted hexagonal channels. The series RERhSn displays a somewhat unique behavior. The a lattice parameter is more or less independent of the rare earth element, while the c lattice parameter shows the expected lanthanoid contraction. ll9Sn Mössbauer spectroscopic data of the rhodium stannides show signals at isomer shifts varying from 1.77 to 1.82 mm/s subject to quadrupole splitting between 0.75 to 0.82 mm/s. 
  Reference    Z. Naturforsch. 56b, 589—597 (2001); received April 12 2001 
  Published    2001 
  Keywords    Stannides, Crystal Structure, Mössbauer Spectroscopy 
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 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0589.pdf 
 Identifier    ZNB-2001-56b-0589 
 Volume    56 
102Author    Thom As Fickenscher, G. Unter Kotzyba, Rolf-D Ieter, H. Offm, Ann, R. Ainer Pöttgen, H. P. FritzRequires cookie*
 Title    Synthesis, Structure, and Magnetic Properties of EuAgCd and YbAgCd  
 Abstract    New intermetallic compounds EuAgCd and YbAgCd were synthesized in quantitative yield by reaction of the elements in sealed tantalum tubes in a high-frequency furnace. Both com­ pounds were investigated by X-ray diffraction on powders and single crystals: KHg2 type, Imma, a = 490.41(8), b = 771.0(1), c = 834.4(2) pm, wR2 = 0.0624, 255 F values, 12 variables for EuAgCd, and MgZn2 type, Pb^/mmc, a = 584.66(5), c = 946.83(9) pm, wR2 = 0.0502, 187 F 2 values, 11 variables for YbAgCd. Owing to the very small difference in scattering power, no long range ordering of the silver and cadmium atoms is evident from the X-ray data, although Ag-Cd ordering is expected. The silver and cadmium atoms randomly occupy the mercury and zinc positions of the KHg2 and MgZn2 type structures, respectively. In EuAgCd the [AgCd] substructure consists of strongly puckered, orthorhombically distorted Ag3 Cd3 hexagons, while a three-dimensional network of face-and comer-sharing tetrahedra is observed in YbAgCd. The rare earth atoms fill the space between the Ag3 Cd3 hexagons (EuAgCd) or within the three-dimensional tetrahedral network (YbAgCd). Magnetic susceptibility measurements in­ dicate Pauli paramagnetism for YbAgCd and Curie-Weiss behavior above 60 K for EuAgCd with an experimental magnetic moment of 7.82(3) /j b/Eu indicating divalent ytterbium and europium. Ferromagnetic ordering at Tc = 28.0(5) K is observed for EuAgCd. At 2 K and 5 T the saturation magnetization is 5.85(5) /iß/Eu. 
  Reference    Z. Naturforsch. 56b, 598—603 (2001); received April 12 2001 
  Published    2001 
  Keywords    Cadmium, Crystal Structure, Magnetic Properties 
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 Identifier    ZNB-2001-56b-0598 
 Volume    56 
103Author    DouglasL. Dorset, AnthonyJ. HancockRequires cookie*
 Title    Glycerol Conformation and the Crystal Structure of Lipids. I. An Electron Diffraction Study of Tripalmitin and Conformationally Fixed Analogs  
 Abstract    Transmission electron diffraction is used as a qualitative analytical probe of poly methylene chain packing in three conformationally-restricted analogs of tripalmitin derived from configura­ tional isomers of cyclopentane-l,2,3-triol. The analysis demonstrates that the all trans "tuning-fork" conformation seen in X-ray crystal structure analyses on homologous compounds is also found in microcrystals, in contrast to a proposal by Fringeli et al. (Z. Naturforsch. 27 b, 780 [1972]) that an all cis conformation of the triglyceride exists in solvent-grown microcrystals and in multilayers. The presence of mixed polymorphs is also shown for bulk samples previously examined by X-ray powder diffraction techniques by other workers. 
  Reference    (Z. Naturforsch. 32c, 573 [1977]; received March 28 1977) 
  Published    1977 
  Keywords    Triglycerides, Crystal Structure, Electron Diffraction 
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 TEI-XML for    default:Reihe_C/32/ZNC-1977-32c-0573.pdf 
 Identifier    ZNC-1977-32c-0573 
 Volume    32 
104Author    Roland Schmidt, Wolfgang Hiller, Gerhardt PausewangRequires cookie*
 Title    Peroxofluorokomplexe der Übergangsmetalle, V [1-3]  
 Abstract    Kristallstruktur von K2Ti(02)F4 • H20 (orange) mit einem Di(/i-fluoro)diperoxo-hexafluorodititanat(IV)-Anion Transition Metal Peroxofluoro Complexes, V [1-3] Crystal Structure of K2Ti(02)F4 • HcO (orange) with a Di(J«-fluoro)diperoxo-hexafluorodititanate(IV) Anion Orange crystals of K2Ti(02)F4 ' H20 have been obtained from aqueous solution. The crystal structure (space group P2i/n, a = 604.3(3), b = 1424.6(4), c = 761.0(2) pm, ß = 103.98°, Z = 4, dc = 2.63 gem-3 , dm = 2.62 gem-3 , R = 0.051 for 2257 independent reflections) shows isolated di(ja-fluoro)-bridged [Ti2(02)2Fg] 4 -anions, which are inter-connected by hydrogen bonded H20 forming infinite chains. 
  Reference    Z. Naturforsch. 38b, 849—851 (1983); eingegangen am 17. März 1983 
  Published    1983 
  Keywords    K2Ti(02)F4 @BULLET H20, Crystal Structure, Preparation, Properties 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0849.pdf 
 Identifier    ZNB-1983-38b-0849 
 Volume    38 
105Author    Brigitte Eisenmann, Herbert Schäfer, Heike SchrodRequires cookie*
 Title    Über das o-Natriumtelhirostannat(rV) Na4SnTe4 On the o-Sodium-tellurostannate(IV), Na4SnTe4  
 Abstract    The new compound Na4SnTe4 crystallizes in the orthorhombic system, space group P2i2i2i with lattice constants a = 865.8(5) pm, 6 = 884.0(5) pm, and c = 1526.9(8) pm. In the structure there are isolated SnTe4 4 ~-tetrahedra. In seinen binären Chalkogenverbindungen tritt das Zinn gegenüber 0, S und Se in den beiden Oxi-aationsstufen 11+ und IV + auf, während mit Tellur bisher nur das SnTe charakterisiert werden konnte. Auch in ternären Telluriden ist mit Aus-nahme des AggSnTee [1, 2] und des K2SnTe5 [3] Zinn in der Oxidationsstufe IV+ gegenüber Tellur unbekannt. Es überrascht daher, daß sich die Ver-bindung Na4SnTe4, wie wir jetzt fanden, in glatter Reaktion aus den Elementen synthetisieren läßt. Darstellung Zur Darstellung wurden die Elemente in stöchio-metrischen Anteilen unter feuchtigkeits-und sauer-stofffreier Argonatmosphäre in eine bei 150 °C vor-getrocknete Quarzampulle eingewogen. Dabei mußte das Natrium, um den Verlust durch die Reaktion mit dem Gefäßmaterial auszugleichen, nach empi-rischem Befund im Überschuß von ca. 15 Gew.-% zugesetzt werden. Die Ampullen wurden eva-kuiert, abgeschmolzen und in mit Argon gefüllten 
  Reference    Z. Naturforsch. 38b, 921—923 (1983); eingegangen am 17. Mai 1983 
  Published    1983 
  Keywords    o-Sodiumtellurostannate(IV), Preparation, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0921.pdf 
 Identifier    ZNB-1983-38b-0921 
 Volume    38 
106Author    Ali Mahan, Albrecht MewisRequires cookie*
 Title    A B2X2 -Verbindungen mit CaAl2Si2-Struktur, IX [1] Compounds with the CaAl2Si2 Structure, IX [1]  
 Abstract    The compounds ZrCu2P2, YZnCuP2, LaZnCuP2, and CeZnCuP2 have been prepared and their structures have been determined. They are isotypic and crystallize trigonally in the CaAl2Si2-type structure (space group P3m 1) with the lattice constants: ZrCu2P2 a = 381,2(1) pm, c = 617,1(2) pm, YZnCuP2 a = 398,3(1) pm, c = 652,3(2) pm, LaZnCuP2 a = 408,2(1) pm, c = 674,2(2) pm, CeZnCuP2 a = 406,4(1) pm, c = 669,7(2) pm. 
  Reference    Z. Naturforsch. 38b, 1041—1045 (1983); eingegangen am 13. Mai 1983 
  Published    1983 
  Keywords    Ternary and Quaternary Phosphides, Copper, Zinc, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1041.pdf 
 Identifier    ZNB-1983-38b-1041 
 Volume    38 
107Author    Sigurd Elz, Armin Buschauer, Martin Dräger, Walter SchunackRequires cookie*
 Title    Darstellung, Eigenschaften und Kristallstruktur der N-[2-(4.5.6.7-Tetrahydro-2-benzimidazolyl)-ethyl] -phthalamidsäure Preparation, Properties and Crystal Structure of N-[2-(4.5.6.7-Tetrahydro-2-benzimidazolyl)-ethyl]-phthalamic Acid  
 Abstract    During syntheses using the phthalimide rest in liquid, ethanolic or aqueous ammonia, phthalamides, phthalimides or phthalamic acids are formed depending on reaction condi-tions and work-up. As demonstrated by the synthesis of the title compound via hydrolysis of 4 with aqueous ammonia, dipolar ions of phthalamic acids are obtained if the phthal-imide-N substituent is sufficiently basic. The crystal structure of 5 • 4H2O has been determined and refined until R = 0.0878. It shows a vast system of hydrogen bonds. 
  Reference    Z. Naturforsch. 38b, 1203—1207 (1983); eingegangen am 3. Juni 1983 
  Published    1983 
  Keywords    Crystal Structure, Phthalamic Acid, Phthalamide, Phthalimide 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1203.pdf 
 Identifier    ZNB-1983-38b-1203 
 Volume    38 
108Author    Bernhard Lippert, Helmut Schöllhorn, Ulf ThewaltRequires cookie*
 Title    Platin in seiner ungewöhnlichen Oxidationsstufe —III: Diplatin(III)-Komplexe der Modellnukleobase 1-Methyluracil Platinum in its Unusual Oxidation State -fill: Diplatinum(III) Complexes with the Model Nucleobase 1-Methyluracil  
 Abstract    Oxidation of the head-tail dimer cis-[(NH3)2Pt(l-MeU)]2(N03)2 (1-MeU = 1-methyl-uracilato anion, C5H5N2O2) with a mixture of nitrous and nitric acid yields three crystalline 
  Reference    Z. Naturforsch. 38b, 1441—1445 (1983); eingegangen am 15. Juli 1983 
  Published    1983 
  Keywords    Diplatinum(III), Crystal Structure, 1-Methyluracil Complex 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1441.pdf 
 Identifier    ZNB-1983-38b-1441 
 Volume    38 
109Author    Hubert Schmidbaur, Beatrix Milewski-Mahrla, FritzE. WagnerRequires cookie*
 Title    Synthese, Struktur und Sb-Mößbauer-Spektren kovalenter und ionischer Tetraorganoantimon(V) -Verbindungen Synthesis, Structure and Sb-Mößbauer Spectra of Covalent and Ionic Tetraorganoantimony(V) Compounds  
 Abstract    Tetramethylstibonium and tetraphenylstibonium oxinate*(l, 2) and anthranilate (4, 5) have been prepared from the antimony pentaorganyls and 8-oxy-quinoline or anthranilic acid, respectively. The crystal structure determination of 1 revealed covalent molecules with planar bidentate oxinate as part of a distorted coordination octahedron at antimony. -121 Sb-Mößbauer spectra of 1, 2, 4, 5 and of tetramethylstibonium acetylacetonate (3) are also in agreement with covalent structures, but a pentacoordinate environment of Sb is more likely for the anthranilates 4, 5. The spectra of the hydrogendicarboxylates 6-9, however, point to ionic stuctures with, if any, only weak donor interactions of the anions with the stibonium cations. 
  Reference    Z. Naturforsch. 38b, 1477—1483 (1983); eingegangen am 14. Juli 1983 
  Published    1983 
  Keywords    Organoantimony Compounds, Mößbauer Spectra, Crystal Structure 
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 Identifier    ZNB-1983-38b-1477 
 Volume    38 
110Author    Siegfried PohlRequires cookie*
 Title    Synthesis and Crystal Structure of a Polymeric Adduct of 2,2'-Dipyridil and Iodine: CioHgN^  
 Abstract    The reaction of 2,2'-dipyridil with iodine (I2; molar ratio 1:3) in CH2C12 solution yields the polymeric complex 2,2'-dipyridil(I2)3. The crystal structure of the compound was determined from single crystal X-ray data (monoclinic, C2/c, a — 3215.0(16), b = 439.9(1), c = 1824.1(9) pm, ß = 130.79(3)°, Z = 4). 2,2'-Dipyridil(I2)3 forms infinite chains of alternating Iß units and bifunctional dipyri-dil molecules. 
  Reference    Z. Naturforsch. 38b, 1535—1538 (1983); eingegangen am 12. Juli 1983 
  Published    1983 
  Keywords    2, 2'-Dipyridil(I2)3, Preparation, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1535.pdf 
 Identifier    ZNB-1983-38b-1535 
 Volume    38 
111Author    Uwe Klingebiel, Norbert Vater, William Clegg, Martin Haase, GeorgeM. SheldrickRequires cookie*
 Title    Synthesis of Silicon-Phosphorus-Rings - Structure of a cis-2,2,4,4-Tetrakis(silylamino)-l,3-diphospha-2,4-disilacyclobutane  
 Abstract    Fluorosilylphosphanes of the type R2SiFPHR' (R = CHMe2, CMe3, NMeSiMe3; R' = H, C6H5; 1-4) are obtained in the reaction of difluorosilanes with lithiated phosphanes in a molar ratio 1:1. Diphosphasilanes (5, 6) and a difluorosilylphosphane (7) are isolated as by-products. 1-4 react with w-QjHgLi to give cyclic silylphosphanes, LiF, and C4H10 (8-11). Dilithiated 5 reacts with F2PN(CMe3)SiMe3 to form of a four-membered SiP3-ring 12. The 31 P NMR spectra of 9 and 11 show signal coalescence for the eis-and tfrans-isomers at room temperature. The crystal structure of the cis-isomer of 11 has been determined. The substituted ring 13 is prepared in the reaction of lithiated 9 and Me2SiF2. 
  Reference    Z. Naturforsch. 38b, 1557—1562 (1983); eingegangen am 6. Juli 1983 
  Published    1983 
  Keywords    Fluorosilylphosphanes, Cyclisation, P-Inversion, Isomers, Crystal Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-1557.pdf 
 Identifier    ZNB-1983-38b-1557 
 Volume    38 
112Author    D. Arstellun, J. K. Etterer, V. KrämerRequires cookie*
 Title    N O T IZ E N Preparation and Crystal D ata of the Isotypic Bism uth Oxide H alides Bi50 7I and Bi50 7Br  
 Abstract    und K ristalldaten der isotyp en W ism u t-O xid -H alogen id e B i50 7I und B i50 7Br The title compounds were prepared (a) polycrys-talline by sintering the binary components and (b) single-crystalline by a wet chemical method. They crystallize in the space group Cmca with the lattice parameters a = 16.244(2), b = 5.342(1), c — 23.006(4) and 16.099(2), 5.296(1), 22.995(6) Ä, resp. Their X-ray powder diffraction data are listed. 
  Reference    (Z. Naturforsch. 39b, 105 [1984]; eingegangen am 24. August 1983) 
  Published    1984 
  Keywords    Bismuth Oxide Iodide, Bismuth Oxide Bromide, Preparation, Crystal Structure 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0105_n.pdf 
 Identifier    ZNB-1984-39b-0105_n 
 Volume    39 
113Author    Hans Hartl, FarbodM. Ahdjour-, H Assan-A BadiRequires cookie*
 Title    Synthese und Strukturuntersuchungen von Iodocupraten(I)  
 Abstract    III. Iodocuprate(I) mit isolierten Ketten oc[Cu2l3 ]_ bzw. i[C u 3l 4 ]_ [1] Syntheses and Structure Analyses of Iodocuprates(I), III. Iodocuprates(I) with Isolated Chains [CU2I3]"" or 4 [C u 3I4]~ N-Methylpyridinium-triiododicuprate(I), C6H8NCu2I3, methyltriphenylphosphonium-tetra-iodotricuprate(I), (C6H5)3CH3PCu3I4 and tetrapropylammonium-tetraiodotricuprate(I), (C3H7)4NCu3I4 were obtained by reacting Cu with I2 and C6H8NI, (C6H5)3CH3PI or (C3H7)4NI in acetone. The crystal structures of these compounds are built up by the cations and isolated chains of edge or face sharing Cul4-tetrahedra: [C6H8N ]+ « [(C u I^ I ^)^ -, [(C6H5)3CH3P] + oc[(CuI1/2I2/3I1/4)2 (CuI2/3I2/4)]_ and [(C3H7)4N ]+ i[(C u I3/3I1/2)2 (CuI3/3)]~. There are very short C u -C u distances of 246.1(5) and 250.3(5) pm in (C3H7)4NCu3I4 produced by face sharing of Cul4-tetrahedra. 
  Reference    Z. Naturforsch. 39b, 149 (1984); eingegangen am 29. September 1983 
  Published    1984 
  Keywords    Iodocuprates(I), Synthesis, Crystal Structures, Tetrahedra Chains 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0149.pdf 
 Identifier    ZNB-1984-39b-0149 
 Volume    39 
114Author    M. Witzei, D. BabelRequires cookie*
 Title    Die Kristallstruktur des elpasolith-verwandten Cyanokomplexes [N(CH3)4]2NaFe(CN)6 * H20 The Crystal Structure of the Elpasolite-Related Cyano Complex [N(CH3)4]2NaFe(CN)6 * H20  
 Abstract    The compound [N(CH3)4]2NaFe(CN)6 • H20 crystallizes in the orthorhombic space group Pnma, Z = 4, a — 1863.9(2), b = 861.7(1), c — 1317.2(2) pm. The X-ray single crystal structure determination (2515 reflections, R — 0.04) revealed an elpasolite-related framework of slightly deformed Fe(CN)63_ octahedra, the mean distances in which are Fe —C = 194.0 and C—N = 113.9 pm. The strongly distorted octahedral N6 cavities formed by six Fe(CN)63_ units are occupied by monohydrated sodium ions, exhibiting a very short distance N a—O = 221.8(3) pm. By approach to one of the octahedral faces within their N6 environment the sodium ions obtain a distorted tetrahedral NaON3 coordination, N a—N = 2 x 238.0(3) and 241.3(3) pm. One of the compound's two tetramethylammonium ions, which are centered at mirror planes, is orientation-ally disordered. The reason for this is discussed. 
  Reference    Z. Naturforsch. 39b, 201 (1984); eingegangen am 21. Juli/19. Oktober 1983 
  Published    1984 
  Keywords    Crystal Structure, Elpasolite, Hexacyanoferrate(III), Monohydrated Sodium Ion 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0201.pdf 
 Identifier    ZNB-1984-39b-0201 
 Volume    39 
115Author    RolandE. Schmidt, Werner MassaRequires cookie*
 Title    Die Kristallstruktur von Tricarbonyl(2.6-di-rm-butyl-pyridin)chrom(0) bei 200 K Crystal Structure of Tricarbonyl(2,6-dwerr-butyl-pyridine)chromium(0) at 200 K  
 Abstract    Based on single crystal X-ray diffraction data the crystal structure of tricarbonyl(2,6-dwm-butyl-pyridine)chromium(O) has been determined at 200 K: space group P 2,/n, Z = 4, lattice constants a = 680.6(5), b — 1383.3(10), c = 1763.0(16) pm, ß = 96.53(8)°, refinement to R" — 0.048 for 1672 independent reflections with F0 > 2 a. The chromium atom is ^ ^ -b o n d ed to the essentially planar pyridine ring (Cr—C: 219—222 pm, Cr—N: 221 pm). The CO ligands show "eclipsed" orientation with respect to the 2, 4 and 6 position of the pyridine ring. Two CO groups fit into the gaps formed by two methyl groups of the tert-butyl substituents in 2 and 6 position, respectively. The results are discussed in context with related arene and A3-phosphorine com­ plexes. 
  Reference    Z. Naturforsch. 39b, 213 (1984); eingegangen am 14. September 1983 
  Published    1984 
  Keywords    Pyridine Complex, Tricarbonyl Chromium Complex, Crystal Structure 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0213.pdf 
 Identifier    ZNB-1984-39b-0213 
 Volume    39 
116Author    Dietrich Mootz, Wolfgang PollRequires cookie*
 Title    Fluoride und Fluorosäuren, VI Verbindungsbildung und Kristallstrukturen im System Ammoniak—Fluorwasserstoff [ 1 , 2 ] Fluorides and Fluoro Acids, VI Com pound Form ation and Crystal Structures in the System A m m onia-H ydrogen Fluoride  
 Abstract    The melting diagram of the quasi-binary system NH3— HF between the limits NH4HF: and HF was redetermined. The compounds NH 3 • 4H F. NH3 • 5HF and NH3 ■ 8HF with melting points of 26. —14 (dec.) and —95 °C (dec.), respectively, were established as the stable phases. Their crystal structures were determined as those of ammonium hydrogen fluorides NH4[F(HF)3], NH4[F(HF)4] and NH4[HF:(H F)3] • 3HF with extended N -H --F and F -H -F hydrogen bonding. 
  Reference    Z. Naturforsch. 39b, 290—297 (1984); eingegangen am 15. September 1983 
  Published    1984 
  Keywords    System NH3 — HF, Melting Diagram Crystal Structure, Hydrogen Bonding 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0290.pdf 
 Identifier    ZNB-1984-39b-0290 
 Volume    39 
117Author    Rüdiger Kniep, LutzK. Örte, Dietrich MootzRequires cookie*
 Title    Phasenbeziehungen im System Schwefel—Chlor sowie Kristallstrukturen von SC12 und SC14 [1] Phase Relations in the System Sulfur—Chlorine and Crystal Structures of SC12 and SC14  
 Abstract    From new DT A and powder diffraction measurements in the binary system sulfur-chlorine a consistent construction of the melting diagram for the region 50—100 atom-% Cl was possible. It contains sulfur chlorides of the elemental ratios 1:1, 1:2, 1:3, and 1:4 as the stable intermediate phases, which melt at -8 0 °C (congr.), —125 °C (incongr.), —75 °C (incongr.) and — 34 °C (congr.), respectively. SCI is S2C12 as characterized by its crystal structure by R. Kniep, L. Korte 
  Reference    Z. Naturforsch. 39b, 305 (1984); eingegangen am 27. September 1984 
  Published    1984 
  Keywords    Phase Relations, Sulfur Halides, Crystal Structure 
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 Identifier    ZNB-1984-39b-0305 
 Volume    39 
118Author    Z. NaturforschRequires cookie*
 Title    Der ThCr2Si2-Typ und verwandte Strukturen bei AFd2X2-Verbindungen (A = Ca, Sr, Ba; X = P, As)  
 Abstract    The T hC r2Si2-Type and Related Structures of /IPd^XVCompounds (A — Ca, Sr, Ba; X = P, As) A lbrecht Mewis The com pounds APd2X 2 (A = Ca, Sr; X = P, A s) have been prepared and their structures have 
  Reference    Z. Naturforsch. 39b, 713 (1984); eingegangen am 7. Februar 1984 
  Published    1984 
  Keywords    Ternary Pnictides, Alkaline Earth M etals, Palladium, Crystal Structure 
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 Identifier    ZNB-1984-39b-0713 
 Volume    39 
119Author    Rhenium, BoronR. Obert, D. Antona, E.Berhard Schweda, Joachim SträhleRequires cookie*
 Title    Synthese und Kristallstruktur von Re(NBCl3)Cl2[P(CH3)2C6H5]3, ein Komplex mit einer Nitridobrücke zwischen Rhenium und Bor Synthesis and Crystal Structure of Re(N BCl3)Cl2[P(CH3)2C6H 5]3, a Complex with a N itrido Bridge between  
 Abstract    R eN C l2(P M e2Ph)3 reacts as a Lewis base and with BC13 forms a nitrido bridge betw een Re and B. The resulting com plex R e(N B C l3)Cl2(PM e2Ph)3 crystallizes orthorhom bic in the space group Pn2! a with Z = 4. In the com plex each Re atom has six nearest neighbours in an almost octahedral arrangement with the NBC13 group being trans to one o f the Cl ligands. The difference betw een the two Re —Cl bond lengths (239,4 and 243,9 pm) indicates a weak trans effect o f NBC13. The linear bridge R e = N — B has bonding distances o f R e —N = 172,8 and N -B = 153 pm. B onding o f BC13 by the nitrido ligand causes a small 
  Reference    Z. Naturforsch. 39b, 733 (1984); eingegangen am 15. Februar 1983 
  Published    1984 
  Keywords    Nitrido Bridge, Synthesis, Crystal Structure, Rhenium, Boron 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-0733.pdf 
 Identifier    ZNB-1984-39b-0733 
 Volume    39 
120Author    Dietrich Mootz, Lutz KorteRequires cookie*
 Title    Fluoride und Fluorosäuren, VIII [1] Über eine fehlgeordnete feste Phase des SF4 sowie die Kristallstrukturen von Produkten seiner unbeabsichtigten Hydrolyse in Glasapparaturen, SiF4 (Neubestimmung) und SOF2 Fluorides and Fluoro Acids, VIII [1] On a D isordered Solid Phase of SF4 and the Crystal Structures of Products of its U nintentional Hydrolysis in Glass A pparatus, SiF4 (R edeterm ination) and SOF2  
 Abstract    A structural investigation on single crystals o f SF4 yielded the cubic space group F m 3m with a — 676.1(5) pm and Z = 4 and from this cubic close packing and at least sixfold disorder o f isolated m olecules. In one o f the experim ents of manipulating SF4 unintentional hydrolysis o f the com ­ pound in a Duran-glass vacuum line occurred. The products SiF4 and SO F2 could be characterized by structure analysis after a miniature zone-m elting separation and crystal growth in one and the sam e thin-w alled capillary. The results for SiF4 [143m, a = 547.6(1) pm , Z = 2 at —117 °C] confirm earlier work with a higher numerical accuracy. SO F2 crystallizes in the m onoclinic space group P 2j/c with a = 524.7(1), b = 704.9(2), c = 1449.3(4) pm , ß = 97.20(2)° at -1 3 7 °C and Z = 8. Isolated molecules o f pyramidal geom etry are arranged in strongly folded layers with interm olecular S ---0 contacts. 
  Reference    Z. Naturforsch. 39b, 1295—1 (1984); eingegangen am 3. April 1984 
  Published    1984 
  Keywords    Sulfur H alides, Silicon Fluoride, Crystal Structures 
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 Identifier    ZNB-1984-39b-1295 
 Volume    39 
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