Spectral and thermal studies of new Co(II) and Ni(II) hexaaza and octaaza macrocyclic complexes

被引：13

作者：

Gaber, M. ^{[1
]}

Rehab, A. F. ^{[1
]}

Badr-Eldeen, D. F. ^{[1
]}

机构：

[1] Tanta Univ, Fac Sci, Dept Chem, Tanta, Egypt

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2008年 / 91卷 / 03期

关键词：

Co(II); Ni(II); macrocyclic complexes; template condensation; thermal analysis;

D O I：

10.1007/s10973-007-8609-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The macrocyclic complexes of Co(II) and Ni(II) having chloride or thiocyanate ions in the axial position have been synthesized and characterized. These complexes are synthesised by the template condensation of o-phenylenediamine or 2,3-butanedionedihydrazone with the appropriate aldehydes in NH4OH solution in the presence of the metal ions, Co(II) and Ni(II). The complexes were characterized by spectroscopic methods (IR, UV-Vis and ESR) and magnetic measurements as well as thermal analysis (TG and DTA). The results obtained are commensurate with the proposed formulae. Spectral studies indicate that these complexes have an octahedral structure. From conductivity measurements the complexes are non-electrolytes. The kinetic of the thermal decomposition of the complexes was studied and the thermodynamic parameters are reported.

引用

页码：957 / 962

页数：6

共 18 条

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