文献类型：期刊文献

英文题名：Ratiometric and highly selective fluorescent sensor for cadmium under physiological pH range: A new strategy to discriminate cadmium from zinc

作者：Lu, Chunliang[1]; Xu, Zhaochao[1]; Cui, Jingnan[1]; Zhang, Rong[1]; Qian, Xuhong[2]

机构：[1]Dalian Univ Technol, State Key Lab Fine Chem, DUT KTH Joint Educ & Res Ctr Mol Devices, Dalian 116012, Peoples R China;[2]E China Univ Sci & Technol, Shanghai Key Lab Chem Biol, Shanghai 200237, Peoples R China

年份：2007

卷号：72

期号：9

起止页码：3554

外文期刊名：JOURNAL OF ORGANIC CHEMISTRY

收录：;EI(收录号：20071810586027);WOS:【SCI-EXPANDED(收录号:WOS:000245814900049)】；

语种：英文

外文关键词：Cadmium compounds - Charge transfer - Complexation - pH effects - Physiology - Zinc

摘要：In a neutral aqueous environment, a new ratiometric Cd2+ fluorescent sensor 1a can successfully discriminate Cd2+ from Zn2+ by undergoing two different internal charge transfer (ICT) processes, and the high selectivity of sensor 1a to Cd2+ over some other metals was also observed. Moreover, through structure derivation and a series of NMR studies, the unique role of the 2-picolyl group (the part in red in the abstract graphic) in the sensor 1a-Cd2+ complexation was disclosed.