Multifunctional ligands with podand topology provide intrinsically well-defined coordination geometries. Several subgroups of multidentate ligand systems comprising dual functionality have been developed so far. Recent advances made in this research area reflect its topicality. Work on metal complexes of ambiphilic ligands consisting of Lewis-acidic Group 13 element bridgehead atoms and additional donor functionalities is in the current focus of interest. The intrinsic topology of tetradentate ligands may introduce a fascinating reactivity and interesting electronic properties to the metal complexes. Janus-head type ligands are very promising candidates for the preparation of multimetallic complexes.
具有荚状拓扑结构的多功能
配体具有固有的、定义明确的配位几何结构。迄今为止,已经开发出多个具有双重功能的多齿
配体系统子群。该研究领域的最新进展反映了其热门程度。目前,人们关注的是由
路易斯酸性的第13族元素桥原子和其他供体官能团组成的亲疏两亲
配体的
金属配合物。四齿
配体的固有拓扑结构可能会为
金属配合物带来迷人的反应性和有趣的电子性质。Janus-head型
配体是制备多
金属配合物的非常有前途的候选者。