A STIMULI-RESPONSIVE CHARGE TRANSFER DYE AND A METHOD OF PREPARING THE SAME

摘要

PURPOSE: A stimuli-responsive charge transfer dye is provided to have high selectivity for detecting a fluoride ion and to impart a clear color change according to pH change and acid or amine exposure. CONSTITUTION: A stimuli-responsive charge transfer dye is in chemical formula 1. The stimuli-responsive charge transfer dye comprises an indole part as an electron donor, and a furan portion as an electron acceptor. A manufacturing method of the stimuli-responsive charge transfer dye comprises a step of obtaining the stimuli-responsive charge transfer dye by reacting 2-(3-cyano-4,5,5-trimethylfuran-2(5H)-ylidene)malonitrile and indole-3-carboxaldehyde; and additional steps of collecting the stimuli-responsive charge transfer dye, and of cleaning and drying the stimuli-responsive charge transfer dye.