Structure of a Conductive, Diamagnetic Diquinone Radical Anion Salt

摘要

Recent work in this laboratory has provided evidence that the radical anions ofpolyacane diquinones have unusual physical properties; properties unlike those of those of the radical anion of monoquinones. We believe that some of these properties arise because these anions, with one unpaired electron and two quinone groups, are mixed-valence compounds. The close connection between mixed valency and the solid-state electrical and magnetic properties of organic charge-transfer salts led us to study solid diquionone salts. Initial results obtained on the diquinone anion radical salt were quite interesting since a packed powder of this salt had a four-point-probe conductivity at room temperature. This is interesting because 1:1 anion-radical salts of this kind are usually not good conductors.