Alkali metal salts of ditopic carbanionic carbenes as reagents for the synthesis of novel complexes of group 12 and 14 metals

Reaction of the novel organo-potassium compound [:C[N(2,6-iPr2C6H3)]2(CH)CK(THF)2] (KIPr·2THF) with M[N(SiMe3)2]2(M = Zn, Sn, Ge, Pb) afforded salts of the anionic three coordinate complexes [M{C(CH)[N(2,6-iPr2C6H3)]2C:}{N(SiMe3)2}2]−(M = Zn (1), Sn (2), Ge (3), Pb (4)).