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Ion‐Specific Aggregation in Conjugated Polymers: Highly Sensitive and Selective Fluorescent Ion Chemosensors
Author(s) -
Kim Jinsang,
McQuade D. Tyler,
McHugh Sean K.,
Swager Timothy M.
Publication year - 2000
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(20001103)39:21<3868::aid-anie3868>3.0.co;2-2
Subject(s) - fluorescence , conjugated system , ion , polymer , chemistry , photochemistry , materials science , organic chemistry , physics , quantum mechanics
Two polymer chains are forced into contact by 2:1 sandwich complex formation between K + ions and [15]crown‐5 groups. By controlling the steric bulk of the side groups of the repeating units and the distance between [15]crown‐5 groups on the polymer main chain (see picture) the interpolymer interactions induced by K + ions can be tuned. Four poly( p ‐phenylene ethynylene)s with [15]crown‐5 side groups were prepared, two of which were designed to function as potassium sensory materials.