Synthesis and Structure of the First Transition Metal Borylene Complexes

Abstract

The stable borylene-bridged Mn2 complexes 1 and 2 are formed in the reaction of K[(η5-C5H4R)-Mn(SiMePh2)(CO)2] with the diboranes(4) B2X2Cl2. The mechanism of formation still remains to be clarified. The molecular structure of 1 (R = H) shows similarities with dimetallacyclopropane derivatives.