THERMAL-STABILITY OF DITHIOCARBAMATES DERIVED FROM ALPHA-AMINO-ACIDS WITH DIFFERENT METAL-IONS

被引：14

作者：

MACIAS, B

CRIADO, JJ

VAQUERO, MV

VILLA, MV

机构：

[1] Departamento de Química Inorgánica, Facultad de Farmacia, Avda. Campo Charro s.n., 37

来源：

THERMOCHIMICA ACTA | 1993年 / 223卷

关键词：

D O I：

10.1016/0040-6031(93)80137-Y

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The thermal stability of compounds formed by dithiocarbamates prepared from several amino acids (glycine, alanine, alpha-aminobutyric acid, norvaline, valine, norleucine, isoleucine) with Ba2+, Pb2+, Cd2+, Mo4+ and Mo5+ has been studied. Owing to its larger ionic character, the barium derivatives decompose at higher temperatures than the other compounds. In general terms, the stability decreases as the molecular weight increases. In all cases, the first step corresponds to dehydration, followed by decarboxylation and pyrolysis of the organic chain. The final residues have been identified by X-ray powder diffraction as oxides, sulphates and oxosulphates.

引用

页码：213 / 221

页数：9

共 16 条

[1]

BERNARD MA, 1969, B SOC CHIM FR, P7066

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