Syntheses of the new trinuclear ions [Ru 3(CO) 11] 2− and [Os 3(CO) 11] 2−

Abstract

Stoichiometric reduction of Os 3CO) 12 and Ru 3(CO) 12 with K and Ca, respectively; yields the two new cluster dianions [Os 3(CO) 11] 2− and [Ru 3(CO) 11] 2− which have been isolated and characterized. Temperature-dependent 13C NMR spectra for [Os 3(CO) 11] 2− and infrared spectra of [Os 3(CO) 11] 2− and [Ru 3(CO) 11] 2− suggest a similar structure for these dianions in which there is a single edge-bridging carbonyl.