2,5-Di-(tert-butyl)phospholyl sandwich complexes containing group 14 elements (Ge, Sn, Pb). Synthesis, molecular structure, and ring transfer chemistry of [M(PC4H2But2)2] (M= Sn, Pb)
2,5-Di-(tert-butyl)phospholyl sandwich complexes containing group 14 elements (Ge, Sn, Pb). Synthesis, molecular structure, and ring transfer chemistry of [M(PC4H2But2)2] (M= Sn, Pb)
Monophosphametallocenium cations of the cobalt group are easily prepared through metathesis of bis(eta(5)-2,5-di-tert-butylphospholyl)lead (1) with [MCp*X-2](2) (M = Cd, Rh, fr). Crystal structure analyses confirm their metallocene structures, and electrochemical studies show that [CoCp*(PC(4)H(2)tBu(2))](+) (2) undergoes reversible reduction to a long-lived product at a potential of -0.74 V (vs SCE).