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An In Situ Generated Achiral Cu(II)‐Containing Polymer Complex Sensor for Enantioselective Recognition Induced from L‐/D‐Histidine Enantiomers
Author(s) -
Wei Guo,
Meng Fandian,
Wang Yuxiang,
Cheng Yixiang,
Zhu Chengjian
Publication year - 2014
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201400558
Subject(s) - enantioselective synthesis , enantiomer , in situ , histidine , polymer , stereochemistry , polymer chemistry , materials science , chemistry , organic chemistry , catalysis , enzyme
A novel achiral polymer P‐1 is synthesized by the polymerization of (2,5‐bis(octyloxy)‐1,4‐phenylene)diboronic acid ( M‐1 ) with pyridine‐2,6‐diylbis(methanylylidene)bis(4‐iodoaniline) ( M‐2 ) via Pd‐catalyzed Suzuki coupling reaction. The tridentate ligand in the main chain backbone can further coordinate with Cu 2+ to afford the corresponding achiral copper‐containing polymer complex P‐2 , which selectively responds to L‐/D‐histidine with significant fluorescence enhancement over other amino acids. Interestingly, P‐2 exhibits obvious CD response toward L‐ or D‐histidine compared with its model compound MC , indicating that this kind Cu(II)‐containing polymer complex sensor can be used as an effective chemosensor for enantioselective recognition of histidine enantiomers by means of CD spectroscopy.