Sensitive fluorescence probes for dihydrogen phosphonate anion based on calix[4]arene bearing naphthol-hydrazone groups  

作　　者：Chen, Yi Chang  Liu, Xian Xian  Huang, Hong  Wu, Wei Wei  Zheng, Yan Song 

机构地区：[1] Department of Chemistry, Huazhong University of Science and Technology, Wuhan 430074, China [2] Department of Chemistry, Guilin Normal College, Guilin 541001, China

出　　处：《Science China Chemistry》2010年第3期568-574,共7页中国科学（化学英文版）

基　　金：the National Natural Science Foundation of China (Grant No 20872040);the Scientific Research Projects of Education Department of Guangxi Province (2006) for financial support;the Analytical and Testing Centre at Huazhong University of Science and Technology for measurement

摘　　要：t-Butyl and t-pentylcalix[4]arenes bearing two 2-naphthol-1-hydrazone groups at the lower rim were synthesized,and showed excited-state intermolecular proton transfer fluorescent signal with basic anion.They are more sensitive to dihydrogen phosphate anion than to fluoride anion,although the latter has stronger basicity.Compared with t-butylcalix[4]arene bearing two 2-naphthol-1-hydrazone groups,t-pentylcalix[4]arenes derivative has a larger fluorescent difference between dihydrogen phosphate and fluoride anion.This finding may be used to analyze dihydrogen phosphate anion in the presence of fluoride anion and provide a new approach for designing fluorescence probes that are highly selective for H2PO4-.t-Butyl and t-pentylcalix[4]arenes bearing two 2-naphthol-1-hydrazone groups at the lower rim were synthesized,and showed excited-state intermolecular proton transfer fluorescent signal with basic anion.They are more sensitive to dihydrogen phosphate anion than to fluoride anion,although the latter has stronger basicity.Compared with t-butylcalix[4]arene bearing two 2-naphthol-1-hydrazone groups,t-pentylcalix[4]arenes derivative has a larger fluorescent difference between dihydrogen phosphate and fluoride anion.This finding may be used to analyze dihydrogen phosphate anion in the presence of fluoride anion and provide a new approach for designing fluorescence probes that are highly selective for H2PO4-.

关 键 词：CALIXARENE probe for anions fluorescence DIHYDROGEN phosphate ANION EXCITED-STATE proton transfer 

分 类 号：O6[理学—化学]