An imidazole-functionalized polyacetylene: convenient synthesis and selective chemosensor for metal ions and cyanide.
A new light-emitting polyacetylene bearing imidazole moieties in the side chain (), was conveniently prepared through a postfunctionalization strategy, as a sensory polymer to selectively report the presence of Cu2+ (with a detection limit of 1.48 ppm) based on the fluorescence "turn-off". Interestingly, the quenched luminescence of by Cu2+ could be turned on after the addition of CN-, making a novel, sensitive, and selective cyanide probe.
Zeng
Qi
Q
Department of Chemistry, Hubei Key Laboratory on Organic and Polymeric Optoelectronic Materials, Wuhan University, Wuhan, 430072, China.
Cai
Ping
P
Li
Zhen
Z
Qin
Jingui
J
Tang
Ben Zhong
BZ
D003486:Cyanides / Q000032:analysis*; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry; D007093:Imidazoles / Q000737:chemistry*; D007477:Ions / Q000032:analysis; D008670:Metals / Q000032:analysis*; D015394:Molecular Structure; D053279:Polyynes / Q000138:chemical synthesis / Q000737:chemistry; D012680:Sensitivity and Specificity; D013050:Spectrometry, Fluorescence / Q000379:methods
D003486:Cyanides; D005456:Fluorescent Dyes; D007093:Imidazoles; D007477:Ions; D008670:Metals; D053279:Polyynes