Quinoxalino[2,3-b]quinoxaline and 5,12-derivatives : Redox dependant spectral change and novel single-component organic conductors based on the neutral radical skeleton

Abstract

Polyacenes which consists of linearly aligned benzenes are applicable to produce interesting organic electronic materials such as organic FET and LED. Polyazaacenes, which are the nitrogen-atom containing analogues of polyacenes, are also expected to be utilized as organic electronic materials. In this study, we investigate spectral and redox properties of quinoxalinoquinoxaline derivatives and their 5,12-dihydro compounds. In addition, new stable radicals with the quinoxalinoquinoxaline skeleton have been synthesized, which exhibit good electrical conductivity as a single-component organic materials.