η-Cyclopentadienyl molybdenum imido compounds; halo, alkene, alkyne, allyl and tertiary phosphine derivatives

Abstract

The new imido compounds [M(η-C₅H₄R)Cl₂(NR′)]*(M = Mo, R = H, R′= Bu^t, Prⁿ or Ph; M = Mo, R = Me, R′= Bu^t or Ph; M = W, R = H, R′= Bu^t), [Mo (η-C₅H₄R)Cl(L)(NR′)](R = H, R′= Bu^t, L =η-C₂H₄, or η-C₂Me₂; R = Me, R′= Bu^t, L = C₂H₄*; R = H, R′= Ph, L =η-C₂Me₂), [{Mo(η-C₅H₄R)(η-C₂H₄)(NBu^t)}₂Hg]*(R = H, Me), [Mo (NBu^t)Cl₂(PMe₃)₃], [Mo(η-C₅H₅)Cl₃(NBu^t)] and the π-allyl complex [Mo(η-C₅H₄Me)(η-C₃H₅)(NBu^t)] are synthesised; *indicates that the crystal structure has been determined.