Synthesis and thermal study of 8-hydroxyquinoline derivatives of the alkaline earth metals - I. Strontium complexes

被引：8

作者：

Guerreiro, CTR ^{[1
]}

Ribeiro, CA ^{[1
]}

Crespi, MS ^{[1
]}

Torres, C ^{[1
]}

机构：

[1] UNESP, Inst Quim Araraquara, BR-14801970 Araraquara, Brazil

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 1999年 / 56卷 / 02期

关键词：

DTA; 8-hydroxyquinoline and its halogenated derivatives; strontium; TG; thermal behaviour;

D O I：

10.1023/A:1010100610627

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Strontium complexes of 5,7-dibromo-, 5,7-dichloro-, 7-iodo- and 5-chloro-7-iodo-8-hydroxyquinoline were precipitated from an aqueous ammonia and acetone medium. The complexes obtained were Sr[(C9H4ONBr2)(2)]. 2.5H(2)O; Sr[(C9H4ONCl2)(OH)]. 1.5H(2)O; Sr[(C9H5ONI)(2)]. 5H(2)O and Sr[(C9H4ONICl)(OH)]. 1.25H(2)O. The residues of their thermal decomposition were SrBr2; a mixture of SrCl2, SrCO3 and SrO; SrCO3 and SrCO3, respectively. All were characterized by means of thermogravimetry, differential thermal analysis, complexometry with EDTA, atomic absorption spectroscopy, IR spectroscopy and X-ray diffraction.

引用

页码：519 / 524

页数：6