Electronic Structure and Near-Infrared Spectra of Diquinone Anion Radicals

摘要

As part of a study directed toward molecular electronics, we had an occasion toprepare several polyacenequinones. These compounds are linearly annulated with up to 11 rings in a row. The properties of these unusual molecules seemed of interest since they provided rigid rods with long delocalization lengths. Our initial investigations, indeed, showed that these compounds could exhibit unusual physical properties. They form oriented monolayers, provide molecular rulers for electron microscopy measurements, and conducting salts. We have described the unusual near-infrared (near-IR) absorption spectra from anion radicals of several di-and triquinones, and in this paper we explore that subject by using several simple diquinone anion radicals as models.