文章基本信息

标题：Selective Cation Recognition by p-Tetranitrocalix[4]arene
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作者：Imam Bakhsh Solangi ; Ashfaque Ali Bhatti ; Mansoor Ahmed Qazi 等
期刊名称：Pakistan Journal of Analytical & Environmental Chemistry
印刷版ISSN：1996-918X
电子版ISSN：2221-5255
出版年度：2012
卷号：13
期号：2
页码：129-136
语种：English
出版社：National Centre of Excellence in Analytical Chemsitry
摘要：The present study explores the copper selective complexation character of 5,11,17,23-tetranitro25,26,27,28-tetrahydroxycalix[4]arene (p-TNC4) among a series of different alkali,alkaline earth and transition metal ions,i.e. Li+,Na+,K+,Cs+ Mg2+,Ba2+,Hg2+,Cd2+,Pb2+,Co2+ Ni2+ and Zn2+ using absorption spectroscopic technique. p-TNC4 shows pronounced discriminative specificity towards Cu2+ even the interference study of other co-existing ions also proved this selectivity. Furthermore,the solvatochromic effect,effect of acid (acetic acid),alkali (piperidine) on spectra,response time measurement and the stability of p-TNC4-Cu2+ complex in MeCN has also been investigated. The stoichiometric analysis (i.e. Jobs plot) reveals that p-TNC4 forms 1:1 host-guest complex with Cu2+..
关键词：Macromolecule;Solvatochromic features;Binding affinity;Metal ions;Non-covalent chemistry