A novel ditopic ligand derived from 8-hydroxyquinoline: Synthesis, characterisation, and its coordination chemistry with selected metal ions
A novel ditopic ligand derived from 8-hydroxyquinoline: Synthesis, characterisation, and its coordination chemistry with selected metal ions
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DOI：
10.1016/j.ica.2011.10.061
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发表时间：
2012-03
影响因子：
2.8
通讯作者：
Xiang Xie;Xiujuan Jiang;Jian Liu;X. Ren;Hongming Wang;Xiaoming Liu
中科院分区：
文献类型：
--
作者：
Xiang Xie;Xiujuan Jiang;Jian Liu;X. Ren;Hongming Wang;Xiaoming Liu
合成了一种新型多齿配体5-(双(吡啶-2-甲基)氨基)喹啉-8-醇(HL)，并对其结构进行了表征。用紫外可见光谱滴定研究了它与多种金属离子(镁、钴、铜、锌、汞)的配位模式。在所考察的金属离子中，由于配体的双向性，金属离子与配体之间的配位比(M2+：HL)分别为1：2、1：1和3：2。在乙腈溶液中，被测金属离子Li+、K+、Mg2+、Ca2+、Al3+、Cu2+、Fe3+、Cr3+、Zn2+、Co2+、Ni2+、Hg2+与配体结合后表现出较强的荧光反应。
A novel multidentate ligand, 5-(bis(pyridin-2-ylmethyl)amino)quinolin-8-ol (HL) was synthesised and characterised. Its coordination modes with a variety of metal ions (Mg2+, Co2+, Cu2+, Zn2+, and Hg2+) were investigated using UV–Vis spectroscopic titration. Among the examined metal ions, coordination ratios (M2+: HL) between the metal ion and the ligand at 1:2, 1:1, and 3:2 were observed due to the ditopic nature of the ligand. In acetonitrile, Mg2+showed relatively strong fluorescent response upon binding to the ligand among the examined metal ions, Li+, K+, Mg2+, Ca2+, Al3+, Cu2+, Fe3+, Cr3+, Zn2+, Co2+, Ni2+, and Hg2+.