Reactivity of co-ordinated S2CPR3 ligands. Crystal and molecular structure of [Mo{η3-SC(SMe)PMe3}(CO)2(PMe3)2]I
Abstract
Treatment of [Mo(S2CPMe3)(CO)2(PMe3)2]1 with HBF4 or RI affords respectively [Mo{S2C(H)PMe3}(CO)2(PMe3)2]BF42 and [Mo{η3-SC(SR)PMe3}(CO)2(PMe3)2]I (R = Me 3a or Et 3b); an X-ray study of 3a shows that alkylation takes place at sulfur and that the resulting phosphoniodithioester ligand is trihapto (S,S′,C) bonded to molybdenum.