Thermal studies on purine complexes. VIII. Thermal behaviour of 8-ethylxanthine, 8-ethyl-3-methylxanthine and some of their metal complexes

Thermal decomposition processes for 8-ethylxanthine (8EH), 8-ethyl-3-methylxanthine (3MEH) and the complexes formed by these purine bases with Cu(II), Ag(I), Au(III) and Pd(II) ions have been studied using TG and DSC techniques. Infrared spectroscopy and X-ray diffraction have been used for the char...

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Bibliographic Details
Published in:Thermochimica acta 1985-04, Vol.86, p.189-197
Main Authors: Salas-Peregrin, J.M., Colacio-Rodriguez, E., Sanchez-Martinez, E.
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
Inorganic chemistry and origins of life
Kinetics and mechanism of reactions
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Summary:Thermal decomposition processes for 8-ethylxanthine (8EH), 8-ethyl-3-methylxanthine (3MEH) and the complexes formed by these purine bases with Cu(II), Ag(I), Au(III) and Pd(II) ions have been studied using TG and DSC techniques. Infrared spectroscopy and X-ray diffraction have been used for the characterization of final products of the pyrolysis. Dehydration, deammination and dehalogenation energies have been calculated from DSC curves.
ISSN:0040-6031
1872-762X
DOI:10.1016/0040-6031(85)87048-9