Rare-earth dialkyl and dihydride complexesbearing monoanionic ancillary ligands

Abstract

This paper gives a brief overview on recent progress in the chemistry of rare-earth dialkyl and dihydride complexes with monoanionic supporting ligands. The dialkyl complexes serve as excellent catalysts for the polymerization and copolymerization of a wide range of olefins to give novel polymer materials difficult to prepare by other means. The dihydride species show unique features in terms of both their structure and reactivity, which are in sharp contrast with those of the monohydride analogues bearing two supporting ligands.