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

Authors
Guerreiro, CTR Ribeiro, CA Crespi, MS Torres, C
Citation
Ctr. Guerreiro et al., Synthesis and thermal study of 8-hydroxyquinoline derivatives of the alkaline earth metals - I. Strontium complexes, J THERM ANA, 56(2), 1999, pp. 519-524
Citations number
10
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
13886150 → ACNP
Volume
56
Issue
2
Year of publication
1999
Pages
519 - 524
Database
ISI
SICI code
1388-6150(1999)56:2<519:SATSO8>2.0.ZU;2-Z
Abstract
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 aceto ne medium. The complexes obtained were Sr[(C9H4ONBr2)(2)]. 2.5H(2)O; Sr[(C9 H4ONCl2)(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 mixtur e of SrCl2, SrCO3 and SrO; SrCO3 and SrCO3, respectively. All were characte rized by means of thermogravimetry, differential thermal analysis, complexo metry with EDTA, atomic absorption spectroscopy, IR spectroscopy and X-ray diffraction.