Corrole as a Binucleating Ligand: Preparation, Molecular Structure and Density Functional Theory Study of Diboron Corroles

摘要

Since the development of one-pot syntheses of corrole a few years ago, the chemistry of corroles has grown by leaps and bounds. Indeed, both the coordination chemistry and range of applications of corroles promise to be just as diverse as those of porphyrins. There are major differences between the two classes of ligands, of course. Unlike porphyrins, corroles, as trianionic ligands, readily form stable, formally high-valent transition metal complexes. One interesting limitation of corrole chemistry is that all transition metal and main group corrole complexes known to date contain a single coordinated heteroelement. This is in contrast to our work on boron porphyrin complexes, which shows that coordination of two boron atoms per porphyrin is possible and leads to unusual chemistry at both the boron and the porphyrin.