Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1236021 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2007 | 6 Pages |
Abstract
2-Carboxybenzaldehydeisonicotinoylhydrazone (HL), and its three lanthanide complexes, LnL3·4H2O [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 Kb of the complex (3) is 7.86 Ã 104 Mâ1.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Yuan Wang, Yan Wang, Zheng-Yin Yang,