[R–PLi2(F–R)]2[R = SiPri2(C6H2Pri3-2,4,6)] the first structural characterization of a dilithium phosphandiide in the form of a fluorosilane complex

Abstract

The preparation and spectroscopic characterization of the hexane-soluble, dimeric dilithium diisopropyl-(2,4,6-triisopropylphenyl)phosphandiide 1 and ab initio calculations of the corresponding parent compound 3 are reported; 1 reacts with disopropyl(2,4,6-triisopropylphenyl)-fluorosilane to form the unusual complex 2, whose structure has been established by X-ray crystallographic analysis.