Observation of d-Orbital Aromaticity

摘要

Aromaticity is one of the most important concepts in chemistry and refers to planar cyclic hydrocarbon molecules that exhibit delocalized pi-bonds and unusual stability,such as benzene.This concept has been extended to metal-substituted organic molecules,as well as main group organometallic complexes.The recent discovery of aromaticity in all-metal clusters,for instance [Al_4]~(2-) in [MAl_4]~- (M = Cu,Li,Na),has led to a flurry of research activities and predictions of new aromatic metal clusters,among which is a class of interesting cyclic species containing Cu.