School of Chemical Sciences, North Maharashtra University, Jalgaon, 425001, MS, India.
J Fluoresc. 2014 Jan;24(1):27-37. doi: 10.1007/s10895-013-1297-4. Epub 2013 Sep 27.
Urea based fluorescent chemosensor 1 was synthesized. Receptor 1 shows unique selectivity for the Fe(3+)ion and no such significant response was noticed with other metal ions (Cr(3+), Mn(2+), Co(2+), Ni(2+), Cu(2+), Zn(2+), Cd(2+), Hg(2+), Pb(2+) and Bi(3+)) 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) × 10(3) M(-1) and has good detection limit 0.7 μM. The stoichiometry of 1.Fe(3+) complex was confirmed by mass spectroscopy and Job's plot.
基于尿素的荧光化学传感器 1 被合成。受体 1 对 Fe(3+)离子表现出独特的选择性，而在 DMSO/H2O（50:50，v/v）半水溶液中，其他金属离子（Cr(3+)、Mn(2+)、Co(2+)、Ni(2+)、Cu(2+)、Zn(2+)、Cd(2+)、Hg(2+)、Pb(2+)和 Bi(3+)）则没有明显的响应。通过吸收和荧光光谱法确定了结合特征。从 Benesi-Hildebrand、Scatchard 和 Connor 图获得的受体 1 的结合常数（K）值为（8.3 ± 0.3）×10(3) M(-1)，检测限良好，为 0.7 μM。1.Fe(3+)配合物的化学计量比通过质谱和 Job 图得到证实。
