Study of a variety of O-methyl, O-ethyl, O-isopropyl, and O-n-butyl dithiocarbonate (xanthate) derivatives of mono-, di-, and triphenylgermane. Crystal structures of Ph2Ge[S2CO(iso-Pr)]2 and Ph3Ge[S2COR], where R = Me and iso-Pr

The O-alkyl dithiocarbonate (xanthate) derivatives PhGe[S 2 CO(i-Pr)] 3 , Ph 2 Ge[S 2 CO(i-Pr)] 2 , Ph 3 Ge[S 2 CO(i-Pr)], Ph 3 Ge-[S 2 COMe], Ph 3 Ge[S 2 COEt], Ph 3 Ge[S 2 CO(n-Bu)], Ph 2 Ge[S 2 CO(n-Bu)] 2 , and possibly PhGe[S 2 COR] 3 , where R=Me, and Et, have been prepared in 60-86% yields by reaction of the sodium or potassium salt of the dithiocarbonic (xanthic) acid with trichlorophenyl-, dichlorodiphenyl- or chlorotriphenylgermane. The compounds were characterized by elemental analysis and infrared, Raman and 1 H and 13 C NMR spectroscopy