Promising ESIPT-based fluorescence sensor for Cu²⁺ and CN⁻ ions: investigation towards logic gate behaviour, anticancer activities and bioimaging application

Abstract

An excited state intramolecular proton transfer (ESIPT) process-based novel chromogenic and fluorogenic probe (<bold>2</bold>) was synthesized with the aim of sequential <italic>in situ</italic> detection of Cu²⁺ and CN⁻ ions under aqueous and biological conditions.