SYNTHESIS AND CHARACTERIZATION OF TRIPHENYLGERMANIUM(IV) DIORGANOPHOSPHINODITHIOATES - CRYSTAL AND MOLECULAR-STRUCTURES OF PH(3)GES(S)PR(2)(R=ME, PH)

The first triphenylgermanium diorganophosphinodithioates, Ph(3)GeS(S)P R(2) (R = Me, Et, Ph), were synthesized by metathesis reactions betwee n Ph(3)GeCl and the ammonium or sodium salt of the corresponding dithi o acid. The compounds were characterized by IR, MS and multinuclear NM R (H-1, C-13, P-31) spectroscopy. The solid state molecular structures of Ph(3)GeS(S)PR(2) (R = Me, Ph) were determined by X-ray diffractome try. Both compounds are monomeric, with the monometallic monoconnectiv e (monodentate) 1,1-dithio ligand and slightly distorted, tetrahedral coordination geometry at the germanium atom.