J. Mizutani et al., REACTION OF [MO6S8(PET3)(6)] AND NOBF4 - STRUCTURE AND MOLECULAR-ORBITAL CALCULATION OF AN OCTAHEDRAL CLUSTER COMPLEX [MO6S8(NO)(PET3)(5)], Journal of the Chemical Society. Dalton transactions, (5), 1998, pp. 819-824
An octahedral cluster complex [Mo6S8(NO)(PEt3)(5)] 2 and a dodecanucle
ar cluster complex [Mo12S16(PEt3)(10)] have been obtained by the react
ion of [Mo6S8(PEt3)(6)] with NOBF4. A crystallographic study of 2 show
s a tetragonal distortion of the cluster core where the nitrosyl-co-or
dinated molybdenum atom projects outward. Molecular orbital calculatio
ns on 2 indicate that the distortion of the cluster core enhances the
pi-back donation to the nitrosyl ligand.