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Electrochemical and electronic spectroscopic behaviour of trans-bis(ethanedial dioximato(1-),N,N′) diiodocobaltate(III), [Co(GH)2I2]− in connection with the cations H+, NH4+, Et4N+, Hqn+ (quinoleinium) by Emmanuel Ngameni; Achille Nassi; Jean Ngoune; Michel Megnamisi Belombe; Robert Roux is a Engineering article available to read on EtoBox.

What is Electrochemical and electronic spectroscopic behaviour of trans-bis(ethanedial dioximato(1-),N,N′) diiodocobaltate(III), [Co(GH)2I2]− in connection with the cations H+, NH4+, Et4N+, Hqn+ (quinoleinium) about?

The electrochemistry of six-coordinated cobalt(II1) cobaloximatic salts is reported in acetonitrile containing 0.1 M tetrabutylammonium hexathtorophosphate as supporting electrolyte. The investigated compounds are represented as R[Co(GH),I,] where GH-is ethanedial dioximate or glyoximate and R = H+, NH;, Et,N+, Hqn+ (quinoleinium). Each complex undergoes up to three oxidative processes and two metal-centered reduction steps within the potential range of the solvent. Except for Et,N[Co(GH),I,], all the other complexes display an additional redox system situated between the two metal centered processes. The more likely origin for this additional redox signal is the reduction of the proton contained in the cations H+, NHf and Hqn+ associated to [Co(GH),I,]-in the corresponding complexes. The electrochemical behaviour of the cobaloximatic ion is only slightly influenced by the counter cation. The electronic spectra of these compounds show three bands similar to those generally found for cobaloximes.

Who reads Electrochemical and electronic spectroscopic behaviour of trans-bis(ethanedial dioximato(1-),N,N′) diiodocobaltate(III), [Co(GH)2I2]− in connection with the cations H+, NH4+, Et4N+, Hqn+ (quinoleinium)?

Author

Emmanuel Ngameni; Achille Nassi; Jean Ngoune; Michel Megnamisi Belombe; Robert Roux

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0013-4686)

Published

1995

Language

EN

Field

Engineering (Physical Sciences)