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Dual‐Signaling Fluorescent Chemosensors Based on Conformational Restriction and Induced Charge Transfer
Author(s) -
Mello Jesse V.,
Finney Nathaniel S.
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20010417)40:8<1536::aid-anie1536>3.0.co;2-r
Subject(s) - fluorescence , charge (physics) , dual (grammatical number) , metal , photochemistry , chemistry , alkali metal , chemical physics , alkaline earth metal , dual role , crystallography , physics , optics , combinatorial chemistry , organic chemistry , quantum mechanics , art , literature
Twist and shout! By restricting conformation, 2,6‐biarylpyridines can be induced to “speak” to us through increased fluorescence emission. In combination with induced charge transfer, this allows these simple fluorophores to reveal otherwise silent binding events to alkali metal and alkaline earth cations through brightening and color change (see picture; from left to right: no metal, Li + , Mg 2+ , and Ca 2+ ).