Urea Based Dipodal Fluorescence Receptor for Sensing of Fe3+ Ion in Semi-Aqueous Medium

被引：0
作者：
Umesh Fegade
Hemant Sharma
Sanjay Attarde
Narinder Singh
Anil Kuwar
机构：
[1] North Maharashtra University,School of Chemical Sciences
[2] Indian Institute of Technology,Department of Chemistry
[3] North Maharashtra University,School of Earth and Environmental Sciences
来源：
Journal of Fluorescence | 2014年 / 24卷
关键词：
Dipodal receptors; Semi-aqueous medium; Binding constant;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Urea based fluorescent chemosensor 1 was synthesized. Receptor 1 shows unique selectivity for the Fe3+ion and no such significant response was noticed with other metal ions (Cr3+, Mn2+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+, Hg2+, Pb2+ and Bi3+) in DMSO/H2O (50:50,v/v) semi-aqueous solution. The binding features have been established by absorption and fluorescence spectroscopic methods. The binding constant (K) values obtained from Benesi-Hildebrand, Scatchard and Connor plot for receptor 1 is (8.3 ± 0.3) × 103 M−1 and has good detection limit 0.7 μM. The stoichiometry of 1.Fe3+ complex was confirmed by mass spectroscopy and Job’s plot.
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页码：27 / 37
页数：10
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