【摘要】 碳硼烷和碳硼炔金属配合物中的金属-碳键具有不同于经典金属-碳键的化学性质.一方面,二十面体碳硼烷独特的电子和空间效应使得碳硼烷金属配合物中的金属-碳键不参与和不饱和分子的反应;另一方面,在一定条件下具有大空间位阻的碳硼笼可以诱导某些碳-碳偶联反应.然而,碳硼炔金属配合物中的金属-碳键能与多种不饱和分子发生反应,其反应模式取决于中心金属离子的电子构型.本文简要总结了我们近期在这方面的研究进展.更多还原

【Abstract】 The metal-carbon bonds in metal-carboranyl and metal-carboryne complexes behave very differently fromthose in classical organometallic complexes. The unique electronic and steric properties of icosahedral carboranylmoiety make the M—C bond in metal-carboranyl complexes inert toward unsaturated molecules, and on the other hand,the sterically demanding carborane cage can induce unexpected C—C coupling reactions. The M—C bonds inmetal-carboryne complexes are, however, active toward various kinds of unsaturated molecules and the reactivity patternsare dependent upon the electronic configurations of the metal ions. This account provides an overview of our recent workin this area.更多还原