1260515-12-5Relevant articles and documents
A polymer based fluorescent sensor for Zn2+ detection and its application for constructing logic gates
Dong, Yu,Wu, Yuanzhao,Jiang, Xiaoxiang,Huang, Xiaobo,Cheng, Yixiang,Zhu, Chengjian
, p. 5811 - 5816 (2011)
A polymer-based fluorescent sensor was synthesized by polymerization of (S)-6,6′-dibutyl-3,3′-(di-5-salicylde-ethynyl)-2, 2′-binaphthol (M-1) with (R,R)-1,2-diaminocyclohexane (M-2) via nucleophilic addition-elimination reaction. The responsive optical pr
A highly selective and sensitive polymer-based OFF-ON fluorescent sensor for Hg2+ detection incorporating salen and perylenyl moieties
Li, Junfeng,Wu, Yuanzhao,Song, Fengyan,Wei, Guo,Cheng, Yixiang,Zhu, Chengjian
, p. 478 - 482 (2012/03/26)
A chiral conjugated polymer sensor with incorporated (R,R)-salen and perylenyl moieties in the main chain backbone could be obtained by the polymerization of 1,7-bis((3-formyl-4-hydroxyphenyl)ethynyl)perylene-3,4:9,10- tetracarboxylic tetrabutylate (M-1) with (R,R)-1,2-diaminocyclohexane (M-2) via a nucleophilic addition-elimination reaction. The polymer sensor can emit the fluorescence situated at 635 nm due to the introduction of a strong fluorophore perylenyl group. Compared with the other cations (including Na+, K+, Ca2+, Ag+, Ni2+, Cd 2+, Pb2+, Cr3+ Al3+, Fe 3+, Co2+, Zn2+), only Hg2+ can lead to the most pronounced response of the polymer sensor, which is as high as a 26-fold fluorescence enhancement without interference from other metal ions. More importantly, the fluorescent color of the polymer sensor displays an obvious change from red to bright yellow upon addition of Hg2+, which could be easily detected by the naked eye. The results indicate that the polymer sensor with incorporated (R,R)-salen and perylenyl moieties can be favorably utilized for the development of a potential sensor for Hg2+ detection.
A highly selective fluorescence-based polymer sensor incorporating an (R,R)-salen moiety for Zn2+ detection
Xu, Ying,Meng, Jie,Meng, Lingxing,Dong, Yu,Cheng, Yixiang,Zhu, Chengjian
experimental part, p. 12898 - 12903 (2011/02/23)
A chiral polymer incorporating an (R,R)-salen moiety was synthesized by the polymerization of (R,R)-1,2-diaminocyclohexane with 2,5-dibutoxy-1,4- di(salicyclaldehyde)-1,4-diethynyl-benzene by a nucleophilic additionelimination reaction. The fluorescence responses of the (R,R)-salen-based polymer toward various metal ions were investigated by fluorescence spectra. Compared with other cations, such as Na+, K+, Mg2+, Ca 2+, Mn2+, Fe2+, Fe3+, Co 2+, Ni2+, Cu2+, Ag+, Cd 2+, Hg2+, and Pb2+, Zn2+ can lead to a pronounced fluorescence enhancement as high as 7.8-fold together with an obvious blue-shift change of the chiral polymer. More importantly, the fluorescent color of the polymer changed to bright blue instead of weak yellow after addition of Zn2+, which can be easily detected by the naked eye. The results indicate that this kind of chiral polymer, incorporating an (R,R)-salen moiety as a receptor in the main chain backbone, can exhibit high sensitivity and selectivity for Zn2+ recognition.
