N→Ge Coordinated Germylenes as Ligands for Monomeric Cu Complexes

Abstract

AbstractSynthesis of monomeric Cu complexes stabilized by the N→Ge coordinated germylene L(Cl)Ge (L=2‐Et2NCH2‐4,6‐tBu2‐C6H2) is reported. The reactions of the [L(Cl)Ge]2CuI (1) with AgX provided the complexes [L(Cl)Ge]2CuX (X=2: X=OAc, 3: X=OTf) by selective substitution of the CuI bond. In contrast, the reaction of 1 with K[BEt3H] provided [L(H)Ge]2CuI (4), the product of selective substitution of the GeCl bonds. The 4 represents the first example of Cu complex stabilized by two organogermaniun hydrides [L(H)Ge].