Reductive cleavage of dichalcogenide bonds |
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| Authors: | G V Loukova A D Garnovskii |
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| Institution: | (1) Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russian Federation;(2) Research Institute of Physical and Organic Chemistry, Rostov State University, 192/3 prosp. Stachki, 344090 Rostov-on-Don, Russian Federation |
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| Abstract: | The kinetics of reductive cleavage of the dichalcogenide bond in dimeric Schiff's bases ArEEAr (E=S, Te) induced by indirect
electron transfer byin situ generated bridged bispyridinium radical cations and biradicals was studied by cyclic voltammetry. It was shown that the dependence
between the apparent rate constants of intermolecular electron transfer and the electron-withdrawing properties of diaryldichalcogenides
is violated. The mechanisms of homogeneous (chemical) and heterogeneous (electrochemical) reductive cleavage of diaryldichalcogenides
were discussed.
For Part 2, see Ref. 1.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 1522–1526, August, 1999. |
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| Keywords: | bispyridinium mediator electrochemical catalysis dichalcogenide bond cleavage cyclic voltammetry |
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