Unique Piezochromic Fluorescence Behavior of Dicyanodistyrylbenzene Based Donor–Acceptor–Donor Triad: Mechanically Controlled Photo‐Induced Electron Transfer (eT) in Molecular Assemblies

Calorimetry, Differential Scanning Carbazoles Electrons self assembly 01 natural sciences 0104 chemical sciences Electron Transport photo-induced electron transfer donor-acceptor Nitriles Stilbenes piezochromism Spectrophotometry, Ultraviolet Fluorescent Dyes
DOI: 10.1002/adma.201202409 Publication Date: 2012-08-07T08:55:31Z
ABSTRACT
A novel donor-acceptor-donor triad that exhibits fluorescence on-off switching with high contrast ratio (ca. 10(3) ) in response to a mechanical stimulus in the solid state is reported. This system provides a very unique example of high-contrast fluorescence switching that is driven by a mechanical-force-controlled photo-induced electron transfer (eT) in molecular assemblies.
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