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'Bromodifluoromethyl triphenylphosphonium Bromide' in keywords
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2000 (1)
1Author    C. Bender, D. W. Ulff-M, H. Older, F. Vogt, M. M. Ritschl, EiselRequires cookie*
 Title    Synthese und Kristallstruktur des Bromdifluormethyl-triphenyl- phosphoniumbromids, [(C6H5)3 PCF2Br]+ Br" Synthesis and Crystal Structure o f B rom odifluorom ethyl-triphenylphosphonium Brom ide, [(C6H5)3PC F2Br]+ Br~  
 Abstract    Difluorobromomethyl-triphenylphosphonium bromide [(C6H5)3PCF2Br]+ Br-(1) has been prepared by the reaction of triphenylphosphine with dibromodifluoro-methane in acetonitrile or methylene chloride. The colorless crystals are monoclinic, space group P 2,/n, Z=4, a = 1067.1(2), b = 1488,5(2), c = 1178,2(2) pm, ß = 95,67(3)°. The lattice contains Br~ anions and [(C6H5)3PCF2Br]+ cations with a Br-Br distance of 322,33(11) pm.. For the title compound the results of AM 1, PM 3 ,and MNDO calculations are in good agreement with corresponding values determined by the X-ray analysis only in the case of PM 3. The yellow-red [(C6H5)3PCF2Br]+ Br3~ (2) has been obtained by treating 1 with equimolar quantities of elemental bromine in methylene chloride solution. E inleitung 
  Reference    Z. Naturforsch. 55b, 167—170 (2000); eingegangen am 28. Oktober 1999 
  Published    2000 
  Keywords    Bromodifluoromethyl-triphenylphosphonium Bromide, Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/55/ZNB-2000-55b-0167.pdf 
 Identifier    ZNB-2000-55b-0167 
 Volume    55