Synthesis and thermal decomposition of mixed 2,4′-bipyridine-oxalato complexes with Mn(II), Co(II), Ni(II) and Cu(II)

被引：12

作者：

Czakis-Sulikowska, D ^{[1
]}

Radwanska-Doczekalska, J ^{[1
]}

Markiewicz, M ^{[1
]}

机构：

[1] Lodz Tech Univ, Inst Gen & Ecol Chem, PL-90924 Lodz, Poland

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2000年 / 60卷 / 01期

关键词：

2,4 '-bipyridine-oxalato complexes; IR spectra; thermal decomposition; transition metals(II);

D O I：

10.1023/A:1010193106676

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The mixed 2,4'-bipyridine-oxalato complexes of the formulae M(2,4'-bipy)(2)C(2)O(4)2H(2)O (M(II)=Mn, Co, Ni, Cu; 2,4'-bipyridine=2,4'-bipy or L; C2O42-=ox) have been prepared and characterized. IR data show that the 2,4'-bipy coordinated with these metals(II) via the least hindered (4')N atom; that oxalate group acts as bidentate chelating ligand. Room temperature magnetic moments are normal for the orbital singlet states. The thermal decomposition of these complexes was investigated by TG, DTA and DTG in air. The endothermic or exothermic character of the decomposition of ML2(ox)2H(2)O was discussed.

引用

页码：145 / 150

页数：6

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