Ternary Complexes Comprising Cucurbit[10]uril, Porphyrins, and Guests

摘要

Porphyrins are prized components of functional systems and assembled structures because of their remarkable photo-physical, electrochemical, and catalytic properties in both designed and natural systems. Accordingly, much effort has been directed toward the covalent and noncovalent modification of porphyrins and their incorporation into larger more complex and functional systems. For example, covalently modified porphyrins have been exploited in the preparation of enzyme-mimetic catalysts for oxidation reactions, as sensors for a variety of analytes, and as a component of artificial photosynthetic systems. The noncovalent assembly of porphyrins has been exploited in numerous ways, including as a means to control transport in molecular wires, to control energy migration, and to build catalysts. Of particular relevance to our studies are reports on the encapsulation of porphyrins inside self-assembled coordination cages, calixar-enes, and cyclodextrins.