Synthesis, characterization and DNA-binding studies of 2-carboxybenzaldehydeisonicotinoylhydrazone and its La(III), Sm(III) and Eu(III) complexes

被引：17

作者：

Wang, Yuan ^{[1
]}

Wang, Yan ^{[1
]}

Yang, Zheng-Yin ^{[1
]}

机构：

[1] Lanzhou Univ, Dept Chem, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2007年 / 66卷 / 02期

基金：

中国国家自然科学基金;

关键词：

synthesis; lanthanide; complexes; DNA-binding studies; 2-carboxybenzaidehydeisonicotinoylhydrazone;

D O I：

10.1016/j.saa.2006.02.062

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

2-Carboxybenzaldehydeisonicotinoylhydrazone (HL), and its three lanthanide complexes, LnL(3)(.)4H(2)O [Ln = La(1), Sm(2), Eu(3)], have been synthesized and characterized on the basis of elemental analyses, molar conductivities, IR spectra and thermal analyses. In addition, the DNA-binding properties of the ligand and its complexes have been investigated by absorption, fluorescence and viscosity measurements. The experimental results indicated that the complexes (2) and (3) can bind to DNA, but the ligand and the complex (1) cannot; the binding affinity of the complex (3) is higher than that of the complex (2) and the intrinsic binding constant K-b of the complex (3) is 7.86 x 10(4) M-1. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：329 / 334

页数：6

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