The Photochromism and Fluorescence of Diarylethenes with a Imidazole Bridge Unit: A Strategy for the Design of Turn-on Fluorescent Diarylethene System
The Journal of Physical Chemistry A2009Vol. 113(19), pp. 5550–5553
Citations Over TimeTop 17% of 2009 papers
Abstract
A class of diarylethenes with a imidazole bridge unit has been synthesized and shows photochromic properties with UV/vis light irradiation. It is found that electronic properties of substituent in the imidazole bridge unit have a great effect on both photochromism and fluorescence of diarylethenes because of intramolecular charge transfer. Both "turn-on" and "turn-off" fluorescent diarylethenes systems can be achieved by simple modification of molecular structure and electronic properties of substituent, which provides a strategy for the design of new fluorescent diarylethene systems to be used as switches.
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