Hexaarylbenzenes-Prospects for Toroidal Delocalization of Charge and Energy

摘要

Interactions between organic pi systems govern to a large extent the electronic and functional properties of many microscopic and macroscopic photonic,electronic,and optoelectronic devices.Prominent examples from nature are the light-harvesting complexes LH-I and LH-II in purple bacteria,where several dozen bacteriochlorophyll a molecules form a highly symmetrical ring that collects sunlight energy,which is ultimately transferred to a photosynthetic reaction center.