Crevice co-ordination. Binding of a ligand molecule in a molecular crevice. The crystal and molecular structure of µ-oxo-µ-pyridine-µ-sulphido-bis[(O,O-di-isopropyl phosphorodithioato)oxomolybdenum(V)]

Abstract

Reaction of [{MoO(LL)₂}₂OS](LLO,O-di-isopropyl phosphoroditiotato) with pyridine gives rise to a stable 1:1 adduct in which the pyridine occupies a molecular crevice and is bond to both molybdenum atoms [Mo–N 2.95(2) and 2.93(2)Å]: as a result of the adduct formation the shape of the molybdenum dimer is altered.