Complexation of some trivalent lanthanides, scandium(III) and thorium(IV) by benzylidenepyruvates and cinnamylidenepyruvate in aqueous solution
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Data
1995-07-15
Autores
Siqueira, O. S.
Melios, C. B. [UNESP]
Ionashiro, Massao [UNESP]
de Moraes, M. [UNESP]
Molina, M. [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
The protonation constants of benzylidenepyruvate, 2-chloro-, 4-chlorobenzylidinepyruvate and cinnamylidenepyruvate as well as the stability constants of their binary 1:1 complexes with Cu(II), La(III), Pr(III), Sm(III), Lu(III), Sc(III) and Th(IV) have been determined spectrophotometrically in an aqueous medium at 25 °C and ionic strength 0.500 M, held with sodium perchlorate. Coordination centres in the aforementioned ligands are suggested. © 1995.
Descrição
Palavras-chave
Benzylidenepyruvates, Cinnamylidenepyruvate, Metal ion complexes
Como citar
Journal of Alloys and Compounds, v. 225, n. 1-2, p. 267-270, 1995.