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The anionic complexes, [ln(C6F5)4]-, which are thermal and moisture sensitive, have been prepared by the reaction of In(C6F5)3·D(D=CH3CN, O(C2H5)2) with the system (CH3)3SiC6F5/CsF, C6F5MgBr or Cd(C6F5)2. The stable anionic indium(III) complexes are obtained through cation exchange with PNPCI ([PNP]= bis(triphenylphosphino)ammonium). The pure substance is obtained by column chromatography. These new anionic complexes are unambiguously identifed by NMR-spectroscopy, IR spectroscopy, molecular weight, DTA/TG and elemental analysis.
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