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1Author    Requires cookie*
 Abstract    The parameters of complete X-ray struc­ ture determinations are given for the fluorides R b2N aF eF 6 and R b2K F eF 6 (cubic), Cs2NaCrF6 and Cs2N aF eF 6 (hexagonal-rhom-bohedral) and Cs2LiGaF6 (hexagonal). Space group and lattice constants of the monoclinic cyanides Cs2BFe(C N)6 (B = Na, K, Rb) are reported as well. 
  Reference    (Z. Naturforsch. 30b, 462—464 [1975]; eingegangen am 27. Februar 1975) 
  Published    1975 
  Keywords    Fluorides, Cyanides, Structure Determination 
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 TEI-XML for    default:Reihe_B/30/ZNB-1975-30b-0462_n.pdf 
 Identifier    ZNB-1975-30b-0462_n 
 Volume    30 
2Author    W. Stoeger, A. RabenauRequires cookie*
 Title    Tl6Ag2Iio9 ein Polyiodid mit Ag2-Paaren Darstellung, Eigenschaften und Kristallstruktur Tl6Ag2Iio, a Polyiodide with Ag2 Pairs Preparation, Properties, and Crystal Structure  
 Abstract    TleAg2Iio forms hexagonal crystals with metallic luster. Under its own I2-pressure the m.p. is 302 °C. In vacuum or under inert gas TleAg2Iio decomposes above 170 °C forming 1 mole of I2. The space group is P62c with the lattice constants a = 10.480 A, c = 13.415 A and Z = 2. TleAg2Iio is built up by a framework of TIöIö with channels parallel to the c-axis. These channels contain Ag2 pairs with an Ag-Ag distance of 2.98 A and I| _ -polyiodide ions, respectively. 
  Reference    Z. Naturforsch. 33b, 740—744 (1978); eingegangen am 21. April 1978 
  Published    1978 
  Keywords    X-ray, Structure Determination, Polyhalides 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0740.pdf 
 Identifier    ZNB-1978-33b-0740 
 Volume    33 
3Author    Wolfgang Bünder, Erwin WeissRequires cookie*
 Title    Die Kristallstruktur von Bis(eyclopentadienyl)mangan, eine polymere Verbindung mit Cyclopentadienyl-Brücken The Crystal Structure of Bis(cyclopentadienyl)manganese, a Polymerie Compound with Cyclopentadienyl Bridges  
 Abstract    The dark brown anti-ferromagnetic modification of (CsHs^Mn crystallizes ortho-rhombic, space group Pna2x (or Pnam) with a= 1402.7(2), 6 = 582.9(1), c = 996.5(1) pm and Z = 4. It forms polymer chains with a zigzag arrangement of CsHsMn units and additional bridging C5H5-rings between adjacent ions. The normals to the planes of the C5H5-bridges form an angle of 25° to the Mn-Mn-axes. All Mn-C bond distances are longer than expected for covalent bonds, suggesting essentially ionic bonding in agreement with the magnetic behaviour of (CsHs^Mn. The observed antiferromagnetism is attributed to interactions between the manganese ions via the C5H5-bridges. 
  Reference    Z. Naturforsch. 33b, 1235—1237 (1978); eingegangen am 31. Juli 1978 
  Published    1978 
  Keywords    Structure Determination, Polymer Chains, Cyclopentadienyl Bridges, Anti-Ferromagnetism 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-1235.pdf 
 Identifier    ZNB-1978-33b-1235 
 Volume    33 
4Author    JoachimW. Irbser, Heinrich VahrenkampRequires cookie*
 Title    Zinkkomplexe kettenförmiger N3-Chelatliganden Zinc Complexes of Chain-Like N 3 Chelate Ligands  
 Abstract    The title ligands bis[(2-pyridyl)methyl]amine (BPA) and bis[(2-benzimidazolyl)methyl]-methylamine (BBM A) were used to prepare complexes with zinc salts. 1:1 complexes o f BPA with ZnCl2, ZnBr2, Z n l2, Z n(SC N)2, Z n(C H 3COO)2, and Z n (N 0 3)2 as well as o f BBMA with ZnCl2, ZnBr2, and Z n (N 0 3)2 were obtained. Spectroscopic evidence indicates that all these complexes are five-coordinate molecular LZnX , units. With Zn(C104)2, BPA forms a 2:1 com ­ plex presumed to be an octahedral ionic L2Z nX 2 species. The crystal structures o f B P A Z n C L and BBMA ■ ZnBr-, reveal distorted square pyramidal resp. trigonal bipyramidal molecular ge­ ometries. 
  Reference    Z. Naturforsch. 47b, 962 (1992); eingegangen am 30. Dezember 1991 
  Published    1992 
  Keywords    Zinc Complexes, Tridentate Ligands, Preparation, Structure Determination 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-0962.pdf 
 Identifier    ZNB-1992-47b-0962 
 Volume    47 
5Author    Jürgen Senker3, Jens LüdeckebRequires cookie*
 Title    Structure Determination for the Crystalline Phase of Triphenyl Phosphite by Means of Multi-Dimensional Solid-State NMR and X-Ray Diffraction  
 Abstract    The crystalline phase of triphenyl phosphite P(OCöH5)3 was investigated by means of 11P solid-state NMR and X-ray diffraction in a temperature range between 170 K and its melting point (Tm = 293 K). ID MAS NMR spectra exhibit one sharp central resonance indicating only one crystallographically unique molecule in the unit cell. A theoretical analysis concerning the shape of 2D exchange spectra for 1 = 1 /2 nuclei is presented. It is shown that if the exchange is caused by radio-frequency driven spin-diffusion, this technique allows to discriminate rota­ tional symmetry elements in crystalline solids. Used on crystalline triphenyl phosphite, 3-fold symmetry could be revealed clearly. Structure determination based on X-ray single crystal diffraction data collected at 191 K shows that triphenyl phosphite crystallises in hexagonal metric with space group R3 (w R i = 8.3%, Z = 18) and one molecule in the asymmetric unit. This result is in excellent agreement with the NMR spectroscopic data. The lattice parameters at 200 K were determined to a = 37.887(1) and c = 5.7567(2) Ä (V = 7156(1) A3) by refining an X-ray powder-diffraction pattern. The structure of triphenylphosphite can be described as a close rod packing. The rods are formed by ecliptically arranged triphenylphosphite molecules. Due to the 3-fold rotoinversion axis the orientation of molecules in neighboured rods is anti­ parallel. 
  Reference    Z. Naturforsch. 56b, 1089—1099 (2001); received July 18 2001 
  Published    2001 
  Keywords    Triphenyl Phosphite, Structure Determination, Solid-State NMR 
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 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-1089.pdf 
 Identifier    ZNB-2001-56b-1089 
 Volume    56 
6Author    W. Stoeger, A. RabenauRequires cookie*
 Title    Darstellung, Eigenschaften und Kristallstruktur von TlgAu^j 0 Preparation, Properties, and Crystal Structure of TI6AU2I10  
 Abstract    TI6AU2I10 forms black crystals with a golden luster. In a closed system the temperature of decomposition is 276 °C. In vacuum or under inert gas TlßA^Iio decomposes above 65 °C forming 1 mol I2. Above 180 °C a second mol I2 is formed giving Til and gold. The space group is P 62c with the lattice constants a = 10.569 and c = 13.431 A and Z = 2. TI6AU2I10 is built up by a framework of Tlßlß with channels parallel to the c-axis. These channels contain Au + mainly with a trigonal planar coordination or linear IJj-polyiodide ions and I -ions, resp. 
  Reference    Z. Naturforsch. 34b, 685—692 (1979); eingegangen am 24. Januar 1979 
  Published    1979 
  Keywords    X-ray, Structure Determination, Polyhalides, T1 Halides, Au Halides 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-0685.pdf 
 Identifier    ZNB-1979-34b-0685 
 Volume    34 
7Author    A. Chrissafidou, J. Fuchs, H. Hartl, R. PalmRequires cookie*
 Title    Kristallisation und Strukturuntersuchung von Alkali-Parawolframaten Crystallization and Structure Determ ination of Alkaline M etal-Paratungstates  
 Abstract    The syntheses and crystal structures of the following paratungstates-Z with different alka­ line cations are reported and discussed: N a10[H2W 120 42]-2 0 H 20 (I), N a10[H2W 12O 42]-2 7 H 20 (II), N a10[H2W 12O47] -2 8 FLO (III), K10[H2W 120 42] 1 0 H 20 (IV), K6Na4[H ,W 120 42]-1 3 H 20 (V), Cs6Na4[H?W P0 42] • 16IÜO (VI), Cs8N a2[H2W 120 42]-1 0 H 20 (VII), Cs8Na2[H2W 120 42] • 12 H20 (VIII), K3N a7[H2W 120 42] -24H 20 (IX) and KsNa2[H2W 120 42] • 12H20 (X). Priority has been set on the description of the coordination of the cations with the oxygen ligands H2W 12O 4210_ and h 2o . 
  Reference    Z. Naturforsch. 50b, 217 (1995); eingegangen am 22. Juli 1994 
  Published    1995 
  Keywords    Paratungstates-Z, Synthesis, Structure Determination, X-Ray, Cation Coordination 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0217.pdf 
 Identifier    ZNB-1995-50b-0217 
 Volume    50 
8Author    RolfM. Braun, Rudolf HoppeRequires cookie*
 Title    Über Oxostannate(II), IV [1] Zur Kenntnis von Rb2Sn02 und K2Sn02 [2]  
 Abstract    The new compound RboSnOo was obtained as a light yellow powder by heating mixtures of the binary oxides (RbOo.48 + SnO, Rb: Sn = 2:1) under argon (sealed Ag cylinders, 600 °C, 3d). Subsequent annealing (550 °C, 8d and 500 °C, 17 d) led to light yellow transparent single crystals. Rb2Sn02 is extremely sensitive to moisture and decomposes into black products. It crystallizes orthorhombicly in the space group P2i2i2i~D|, with a = 5.76i, b = 7.493, 0= I I.I67 A, Z = 4, drö = 4.43 and dpyk = 4.46 gem-3 , R= 11.8 and i?w = 12.0%. Effective Coordination Numbers, ECoN, these via Mean Fictive Ionic Radii, MEFIR, and the Madelung Part of Lattice Energy, MAPLE, have been calculated. Isotypic K2Sn02 was obtained similarly as a brown powder, a = 5.57g, b = 7.246, c = 16.744 A. 
  Reference    Z. Naturforsch. 37b, 688—694 (1982); eingegangen am 12. Januar 1982 
  Published    1982 
  Keywords    Oxostannates(II), Structure Determination, Effective Coordination Numbers, Madelung Part of Lattice Energy, Synthesis 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0688.pdf 
 Identifier    ZNB-1982-37b-0688 
 Volume    37