Tetraphenylethene-Modified Colorimetric and Fluorescent Chemosensor for Hg²⁺ With Aggregation-Induced Emission Enhancement, Solvatochromic, and Mechanochromic Fluorescence Features.

ABSTRACT: A tetraphenylethene (TPE)-modified rhodanine derivative was successfully designed and prepared, and this luminophor showed intramolecular charge transfer nature from the TPE unit to the rhodanine-3-acetic acid unit. Interestingly, this luminogen not only exhibited typical aggregation-induced emission enhancement (AIEE) behavior but also showed good cell imaging performance. Remarkably, this AIEE-active TPE-containing rhodanine derivative possessed noticeable solvatochromic fluorescence effect involving multiple fluorescent colors of green, yellow-green, yellow, orange, and red. Meanwhile, this fluorescigenic compound displayed reversible mechanochromic fluorescence behavior based on the mutual transformation of between stable crystalline and metastable amorphous states. On the other hand,

SUBMITTER: Tian JJ 

PROVIDER: S-EPMC8828043 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature