Hydrocarbon species mu(3)-CCH2-, mu(3)-CCH3 and mu-CHCH3 supported on Ti3O3

摘要

Treatment of the mu 3-ethylidyne complex {TiCp*(mu-O)}(3)(mu(3)-CMe) (1), (Cp* = mu(5)-C5Me5) with alkali metal amides leads to the oxoheterometallocubane derivatives M(mu(3)-O)(3){(TiCp*)(3)(mu(3)-CCH2)} M = Li (2), Na (3), K (4), Rb ( 5), Cs (6) containing the naked carbanion mu(3)-CCH2-; the addition of triphenyl-methanol and tert-butanol to the compounds 2-6 gives rise to the oxoderivatives {TiCp*(mu-O)}(3)(mu-CHMe)(OCR3) R = Me (7), Ph (8) which show a mu-ethylidene bridge on the surface model Ti3O3.