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1981 (1)
1980 (1)
1Author    M. VeithRequires cookie*
 Title    Cyclische Diazastannylene, VIII [1] Die Kristall-und Molekülstruktur eines Iminostannylens: Sn3 (NC(CH3 )3 )4 H2 Cyclic Diazastannylenes, VIII [1] The Crystal and Molecular Structure of an Iminostannylene: Sn3(NC(CH3)3)4H2  
 Abstract    The crystal and molecular structure of the compound Sn3(NC(CH3)3)4H2 has been determined from X-ray data (R = 0.044). The crystals are cubic, space group Pa3, with cell dimension a — 1713.6(8) pm and Z = 8. The molecules, which have a seco-norcubane like Sn3N4 framework, are statistically disordered, thus forming closed packed pairs of molecules. The Sn3N4 cage deviates strongly from a cube, the bond angles at Sn approach-ing 80°, and at N 100°. The averaged Sn-N bond distance is 223(1) pm. 
  Reference    (Z. Naturforsch. 35b, 20—24 [1980]; eingegangen am 3. September/8. Oktober 1979) 
  Published    1980 
  Keywords    Iminostannylenes, X-ray, Crystal Structure, Molecular Structure, Disorder 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0020.pdf 
 Identifier    ZNB-1980-35b-0020 
 Volume    35 
2Author    M. Veith, 0. RecktenwaldRequires cookie*
 Title    Cyclische Diazastannylene, X [1] Die Kristall-und Molekülstruktur eines Moleküls mit verzerrt-würfelförmigem Sn4N30-Käfig Cyclic Diazastannylenes, X [1] The Crystal and Molecular Structure of a Molecule with a Distorted Cube-Shaped SiLiNsO-Cage  
 Abstract    The crystal and molecular structure of (me3CN)3(me3A10)Sn4 has been determined from three-dimensional X-ray data (4-circle diffractometer, R — 0.048). The crystals are mono-clinic, space group P2i/c, with cell dimensions a = 1017.4(5), b — 1488.5(7), c = 1748(1) pm, jS—91.5(1)° and Z — 4. The molecules approach 3m point-symmetry and include a SruNsO-cage, the atoms occupying the corners of a distorted cube formed by two, differently sized, interpenetrating concentric tetrahedra of tin and nitrogen/oxygen atoms. The nitrogen atoms are attached to tert-butyl groups, whereas the oxygen atom of the cage acts as a base towards the aluminiumtrimethyl group. Typical bond distances and angles (mean values) are: Sn-N = 219.9, Sn-0 = 220.3 pm; N-Sn-N = 81.2°; N-Sn-0 = 79.0°; Sn-N-Sn = 98.8° and Sn-O-Sn -100.2°. 
  Reference    Z. Naturforsch. 36b, 144—149 (1981); eingegangen am 14. Oktober 1980 
  Published    1981 
  Keywords    Molecular Tin(II) Compounds, Iminostannylenes, Cubane-Like Cage, X-ray, Molecular Structure 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0144.pdf 
 Identifier    ZNB-1981-36b-0144 
 Volume    36