A new family of mononuclear organometallic complexes of a divalent metal bound to sequential tetradentate monoanionic ONNN}-type ligands, and polymerization of cyclic esters such as lactides utilizing same are provided. Novel tetradentate monoanionic ONNN}-type ligands usable for forming these complexes are also provided.
提供了一类新的单核有机
金属配合物家族,其中二价
金属与连续的四齿单阴离子ONNN}-型
配体结合,并利用同样的配合物进行环酯如
乳酸内酯的聚合。还提供了用于形成这些配合物的新型四齿单阴离子ONNN}-型
配体。