Redox behavior of trinuclear M3(μ-H)(μ3-μ1:μ2:μ2-C2Fe)(Co)9 and tetranuclear RuM33(μ-H)(μ4-μ1:μ1:μ1:μ2-C2Fe)(Co)12 (M=Ru or Os; and Fc=ferrocenyl) clusters. Electronic interaction between the ferrocenylacetylide ligand ... View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1997-10

AUTHORS

V. V. Strelets, V. I. Zdanovich, V. Yu. Lagunova, A. M. Sheloumov, A. A. Koridze

ABSTRACT

The redox properties of the clusters Ru3(CO)12(1), Ru3(μ-H)(μ3-μ1:μ2:μ2-C2Fe)(CO)9 (2), OS3(μ-H)(μ3-μ1:μ2:μ2-C2Fe)(CO)9 (3), Ru4(μ-H)(μ4-μ1:μ1:μ1:μ2-C2Fe)(CO)12 (4), and RuOS3(μ-H)(μ4-μ1:μ1:μ1:μ2-C2Fe)(CO)12 (5) in THF have been studied by cyclic voltammetry in the temperature range from −60 to +20°C. It was demonstrated that reversible one-electron oxidation of the ferrocenyl fragment in clusters 2–5 occurs at more positive potentials (δE0=0.15–0.26 V) than that of free ferrocene. This is indicative of the electron-withdrawing character of the cluster core with respect to the ferrocenylacetylide ligand. The electron-withdrawing effect of the metal core is more pronounced in tetranuclear clusters4 and 5 than in trinuclear clusters2 and3. Unlike complexes1–3, which undergo irreversible reduction, complexes4 and5 undergo reversible one-electron reduction to form the corresponding radical anions4− and5−. More... »

PAGES

1721-1725

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf02495123

DOI

http://dx.doi.org/10.1007/bf02495123

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1040600470


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