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'Tetraaminophosphonium Salt' in keywords Facet   Publication Year 1994  [X]
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1Author    Stefan Horstmann, Wolfgang SchnickRequires cookie*
 Title    Synthese, Kristallstruktur und Eigenschaften von Tetraaminophosphoniumiodid [P(NH2)4]I Synthesis, Crystal Structure, and Properties of Tetraaminophosphonium Iodide [P(NH2)4]I  
 Abstract    The title compound has been prepared starting from phosphorothionic triamide SP(N H 2)3 by methylation of the sulfur atom and subsequent ammonolysis reaction in dry acetonitrile and dichloromethane, respectively, both at room temperature. Suitable single crystals are obtained from an acetonitrile solution in a temperature gradient between 70 °C and room temperature. The crystal structure o f [P(N H 2)4]I has been determined by single crystal X-ray methods (P 4!nbm\ a = 842.6(2), c = 486.7(2) pm, Z = 2). In the solid [P(NH2)4]+-and I~-ions are found with significant N -H -I -h y d r o g e n bonding interactions between anions and cations (H —I: 276.4 pm). The P -N -b o n d length in the cation (160.7(2) pm) represents the shortest P -N H 2 bond distance reported to date indicating a significant electrostatic strengthening. The condensation behaviour of [P(N H 2)4]I in solution and in the solid has been investigated. 
  Reference    Z. Naturforsch. 49b, 1381—1386 (1994); eingegangen am 5. Mai 1994 
  Published    1994 
  Keywords    Tetraaminophosphonium Salt, Synthesis, Crystal Structure, Hydrogen Bonding, Condensation Reactions 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1381.pdf 
 Identifier    ZNB-1994-49b-1381 
 Volume    49