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
收藏
页码：519 / 524
页数：6
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