Photochromism of phenazine-2,3-diol derivatives through excited state intermolecular proton transfer based on keto–enol tautomerization

Abstract

Photochromism through the excited-state intermolecula proton transfer (ESInterPT) processes based on the keto–enol tautomerization was found in phenazine-2,3-diol PD1 and its monoalkoxy derivative PD2 in a glassy matrix at 77K:...