Progress of the Fluorescent Chemosensor Based on the Control of Twisted Intramolecular Charge Transfer

Abstract

Analytical reagents have a function to recognize the state of an experimental system such as a species and its concentration by visualization. The sensitivity and selectivity are strongly requested in the development of a novel indicator. To fulfill these purposes, twisted intramolecular charge transfer (TICT) mechanisms have been employed for the development of novel fluorescent chemosensors in our study. In this paper, we report on the TICT mechanism of N-phenyl-9-anthacenecarboxamide (9-AA) as a fundamental structure and 9-AA derivatives to detect alkaline earth metal ions and a surfactant.