当前位置： SCI文献检索 > JOURNAL OF INORGANIC BIOCHEMISTRY期刊下所有文献 > Synthesis, crystal structure and interaction with DNA and HSA of (N,N'-dibenzylethane-1,2-diamine) transition metal complexes.

Synthesis, crystal structure and interaction with DNA and HSA of (N,N'-dibenzylethane-1,2-diamine) transition metal complexes.

Abstract：

:A new ligand, N,N'-dibenzylethane-1,2-diamine (L) and its four transition metal(II) complexes, ML(2)(OAc)(2).2H(2)O (M=Cu, Ni, Zn, Co), have been synthesized and characterized by elemental analysis, mass spectra, molar conductivity, NMR and IR. Moreover, the crystals structure of Cu(II) and Ni(II) complexes characterized by single crystal X-ray diffraction showed that the complexes have a similar molecular structure. Ni(II) has an regular octahedral coordination environment complexes, but typical Jahn Teller effect influenced Cu(II) in an elongated octahedral environment. The interaction between complexes and calf thymus DNA were studied by UV and fluorescence spectra measure, which showed that the binding mode of complexes with DNA is intercalation. Under physiological pH condition, the effects of Cu(OAc)(2)L(2).2H(2)O and Ni(OAc)(2)L(2).2H(2)O on human serum albumin were examined by fluorescence. The results of spectroscopic measurements suggested that the hydrophobic interaction is the predominant intermolecular force. The enthalpy change DeltaH(0) and the entropy change DeltaS(0) of Cu(OAc)(2)L(2).2H(2)O and Ni(OAc)(2)L(2).2H(2)O were calculated to be -11.533 kJ mol(-1) and 46.339 J mol(-1)K(-1), -11.026 kJ mol(-1) and 46.396 J mol(-1)K(-1), respectively, according to the Scatchard's equation. The quenching mechanism and the number of binding site (n approximately 1) were also obtained from fluorescence titration data.

journal_name

J Inorg Biochem

journal_title

Journal of inorganic biochemistry

authors

Wu SS,Yuan WB,Wang HY,Zhang Q,Liu M,Yu KB

doi

10.1016/j.jinorgbio.2008.08.005

subject

Has Abstract

pub_date

2008-11-01 00:00:00

pages

2026-34

issue

11

eissn

0162-0134

issn

1873-3344

pii

S0162-0134(08)00198-0

journal_volume

102

pub_type

杂志文章

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