High contrast stimuli-responsive luminescence switching of pyrene-1-carboxylic esters triggered by a crystal-to-crystal transition?
New Journal of Chemistry Pub Date: 2017-10-03 DOI: 10.1039/C7NJ03014B
Abstract
Unexpected high contrast mechanochromic, thermochromic and vaporchromic luminescence has been achieved through a simple introduction of an ester group to a pyrene skeleton and a series of stimuli-responsive materials based on pyrene-1-carboxylic esters were efficiently developed. The mechanistic investigation of stimuli-responsive luminescence indicates that the emission change might be ascribed to a reversible crystal-to-crystal transition. Furthermore, the electron-withdrawing effect of the ester groups to suppress the π–π interaction of the pyrene rings might be the key factor to trigger the promising stimuli-responsive luminescence.
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Journal Name：New Journal of Chemistry
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CAS no.: 89640-58-4
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