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Fe-57 emission Mossbauer study of electron capture after-effects in Co-57-doped diaquadiformato complexes of the first transition series

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Devillers, Michel [UCL] Ladrière, Jean [UCL]

Emission Mossbauer spectroscopy is applied to the investigation of chemical after-effects accompanying the electron capture decay process of Co-57 within an isostructural series of Co-57-doped diaquadiformato complexes of general formula Co-57:M(HCO2)2 . 2H(2)O (M = Mn, Fe, Co, Ni, Cu, Zn). The experimental results are analysed within the framework of the self-radiolysis model, adjusted to allow for the appropriate influence of the host lattice on the stabilization scheme of the nucleogenic Fe-57 species. In line with previous investigations of these processes in other carboxylate-type complexes, large amounts of Fe-III are observed in the nickel-based compound, corroborating the marked propensity of host matrices with more compact structures to stabilize smaller ions in the sterically hindered substitutional sites.

Document type Article de périodique (Journal article) – Article de recherche
Publication date 1996
Language Anglais
Journal information "Journal of the Chemical Society. Faraday Transactions" - Vol. 92, no. 1, p. 117-122 (1996)
Peer reviewed yes
Publisher Royal Soc Chemistry (Cambridge)
issn 0956-5000
Publication status Publié
Affiliation UCL
Links
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Bibliographic reference Devillers, Michel ; Ladrière, Jean. Fe-57 emission Mossbauer study of electron capture after-effects in Co-57-doped diaquadiformato complexes of the first transition series. In: Journal of the Chemical Society. Faraday Transactions, Vol. 92, no. 1, p. 117-122 (1996)
Permanent URL http://hdl.handle.net/2078.1/47319