First Synthesis and Spectroscopic Characterization of Novel Cyclopentadienyl Heterobimetallic Alkoxides:  Crystal Structure of (C₅H₅)Sn(μ₂-OBu^t)₂Ge(OBu^t)

Abstract

Novel half-sandwich complexes of the type CpSn(OBu t ) 3 M (M = Ge II, Sn II, Pb II; Cp = C 5 H 5 ) have been prepared conveniently by salt elimination reactions of CpSnCl with potassium alkoxometalates, [KM(OBu t ) 3 ] n . The single-crystal X-ray crystallographic analysis performed on (C 5 H 5 )Sn(μ 2 -OBu t ) 2 Ge(OBu t ) reveals an average effect of η 3 and η 1 bonding modes of the cyclopentadienyl ring to the tin atom.