Synthesis, characterization and the thermodynamic studies of some unsymmetrical tetradentate Schiff-base ligands and their Ni(II) and Cu(II) complexes

被引：12
|
作者：
Asadi, Mozaffar [1 ]
Asadi, Zahra [1 ]
机构：
[1] Shiraz Univ, Coll Sci, Dept Chem, Shiraz 71454, Iran
来源：
JOURNAL OF COORDINATION CHEMISTRY | 2008年 / 61卷 / 04期
关键词：
copper complex; formation constant; nickel complex; thermodynamics; unsymmetrical Schiff-base;
D O I：
10.1080/00958970701390003
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Some new unsymmetrical tetradentate Schiff-base ligands, (N-salicylidene-N'-pyrrolidene)-1,2-ethylenediamine(H(2)salpyren) (H2L1), (H(2)Mesalpyren) (H2L2), (H(2)phsalpyren) (H2L3), (N-salicylidene-N'-pyrrolidene)-1,3-propylenediamine (H(2)salpyrpd) (H2L4), (H(2)Mesalpyrpd) (H2L5), (H(2)phsalpyrpd) (H2L6) and their Ni(II) and Cu(II) complexes were synthesized and characterized by elemental analyses, IR, UV-Vis, 1H NMR and mass spectra and magnetic moments. Possible structures of these complexes have been proposed. The thermodynamic formation constants of the complexes were determined spectrophotometrically at constant ionic strength 0.1 M (NaClO4), at 25 degrees C in methanol.
引用
收藏
页码：640 / 650
页数：11
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