Core-modified phthalocyanines and subphthalocyanines: A synthetic strategy towards core-modification and novel properties arising from the inner ring-expansion

This microreview covers contribution of the authors in the synthesis of novel “core-modified phthalocyanines and subphthalocyanines” bearing a larger ring unit than a five-membered pyrrole ring in the core. The core-modification does not only cause structural deformation, but also causes significant changes in the optical and electrochemical properties.