Ganesan, Muniyandi ; Sivasubramanian, Veluchamy Kamaraj ; Rajagopal, Seenivasan ; Ramaraj, Ramasamy (2004) Electron transfer reactions of organic sulfoxides with photochemically generated ruthenium(III)-polypyridyl complexes Tetrahedron, 60 (8). pp. 1921-1929. ISSN 0040-4020
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.tet.2003.12.009
Abstract
The electron transfer (ET) reaction of aryl methyl sulfoxides with ruthenium(III)-polypyridine complexes is sensitive to the change of substituent in the aryl moiety of ArS(O)CH3 and ligand of Ru(III) complex. The detection of sulfoxide radical cation as the transient by conventional flash photolysis confirms ET in the rate-controlling step. The successful application of Marcus cross relation of ET leads to the evaluation of self-exchange rate constant of ArS+(O)CH3/ArS(O)CH3 as 4.0x105 M-1 s-1 similar to organic sulfides. Comparison with the reactivity of iron(III)-polypyridyl complexes points out that both reactivity and ρ values are higher with Ru(III) complexes.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Electron Transfer Reactions; Organic Sulfoxides; Ruthenium(iii)-polypyridyl Complexes |
| ID Code: | 88789 |
| Deposited On: | 29 Mar 2012 15:12 |
| Last Modified: | 29 Mar 2012 15:12 |
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