Possible Organic Analogues to Copper Oxides: Applications of a J-Model

Abstract
Ab initio MO calculations were carried out for diradical, polyradical and cation-radical states of azomethyne-ylide dimer and clusters. The calculated results were applied to a molecular design of possible organic analogues to copper-oxide chains and planes in YBa2Cu3O x and related species. These organic analogues have molecular skeletons similar to those of conducting polymers and graphite, although their electronic structures are quite different because of electron and spin correlations.