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Kinetics of electron transfer in quenching of triplet state of xanthene dyes by cyanide complexes of transition metals

Journal Article · · Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)
DOI:https://doi.org/10.1007/BF00955821· OSTI ID:5416920
The authors investigated the kinetics of electron transfer between molecules of dyes in the TS (eosin, Bengal rose) and cyanide complexes of Fe(II), Fe(III), Mo(IV), W(IV), Ru(II), and Co(III) in aqueous solutions. The authors found that electron transfer is the principal mechanism for quenching of the triplet state of eosin and Bengal rose by cyanide complexes of W(IV), Mo(IV), Fe(II), and Fe(III). The systems consisting of eosin or Bengal rose and cyanide complexes are not characterized by a single value of the internal barrier to electron transfer. Values have been calculated for the internal barriers to the electron transfer reaction in quenching of the triplet state of eosin and Bengal rose by cyanide complexes of W(IV), Mo(IV), Fe(II), Fe(III), Co(III), and Ru(II), and values have been estimated for the internal barriers to self-exchange reactions of eosin and Bengal rose in the triplet state.
Research Organization:
V. I. Vernadskii Institute of Geochemistry and Analytical Chemistry, Moscow (USSR)
OSTI ID:
5416920
Journal Information:
Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 36:3; ISSN BACCA
Country of Publication:
United States
Language:
English