A dual-stimuli responsive small molecule organic material with tunable multi-state response showing turn-on luminescence and photocoloration.

A multi-stimuli responsive small molecule organic material has been developed, which for the first time exhibits dual-wavelength response to render photocoloration under visible light and turn-on luminescence under UV light. The colored product can be bleached and shows turn-on luminescence again when re-exposed to UV light. [ABSTRACT FROM AUTHOR]