1421765-82-3Relevant academic research and scientific papers
A quinoline based fluorescent probe that can distinguish zinc(II) from cadmium(II) in water
Cai, Yulei,Meng, Xiangming,Wang, Shuxin,Zhu, Manzhou,Pan, Zhongwen,Guo, Qingxiang
, p. 1125 - 1128 (2013)
A new quinoline based fluorescent probe (DQ) for Zn2+ and Cd2+ has been designed and synthesized. The new probe shows quite different fluorescence response to Zn2+ and Cd2+ in aqueous solution. IR and NMR spectra demonstrated that the different response is caused by amide tautomerization of the probe molecule when coordinating with Zn2+ and Cd2+. The dissociation constants of Zn 2+ and Cd2+ complex were detected to be 3.36 and 30.62 nM, respectively. Other metal ions have no effect on the fluorescence spectrum of the probe. Thus the new probe can detect Zn2+ and Cd2+ in water with high selectivity and sensitivity.
