Syntheses and Functions of Quinoneimine Pigments

Abstract

Quinoneimines having a linear five ring system such as triphenodioxazines (TPDO) and triphenodithiazines (TPDT) were not only useful for dye and pigment, but also expected to show new functions because of their peculiar electron structures.
This article describes syntheses and functions of TPDO, TPDT, triphenodiselenazines and their related compounds as high performance pigments