Preparation and thermal decomposition of copper(II), zinc(II) and cadmium(II) chelates with 8-hydroxyquinoline

When the compounds are heated in an inert atmosphere it can be verified the consecutive partial sublimation, fusion, partial volatilization and partial thermal decomposition of the anhydrous complexes. When in an oxidating atmosphere the above process is only verified to Cu(II) chelates. Anhydrous c...

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Bibliographic Details
Main Authors: Marisa S. Crespi, Clóvis A. Ribeiro, Valentina C. M. Greenhalf, Henrique E. Zorel Jr.
Format: Article
Language:English
Published: Sociedade Brasileira de Química 1999-02-01
Series:Química Nova
Subjects:
TG
DTA
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421999000100009
Description
Summary:When the compounds are heated in an inert atmosphere it can be verified the consecutive partial sublimation, fusion, partial volatilization and partial thermal decomposition of the anhydrous complexes. When in an oxidating atmosphere the above process is only verified to Cu(II) chelates. Anhydrous copper(II) complexes present a monoclinic structure in the b form and the volatilized compound in a a form. Zinc(II) and cadmium(II) hydrated complexes are isomorphous and they present different cell dimensions from those reported previously.
ISSN:0100-4042
1678-7064