Mohan, Hari ; Mittal, Jai P. (1999) Pulse radiolysis investigations on acidic aqueous solutions of benzene: formation of radical cations Journal of Physical Chemistry A, 103 (3). pp. 379-383. ISSN 1089-5639
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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp983255w
Related URL: http://dx.doi.org/10.1021/jp983255w
Abstract
The transient optical absorption bands ( λ max = 310, 350-500 nm, k = 5.6 × 109 dm3 mol-1 s-1) formed on pulse radiolysis of an acidic (HClO4 = 7.8 mol dm-3) aqueous solution of benzene are assigned to the solute radical cation formed on acid-catalyzed dehydration of the OH adduct. The solute radical cation is able to undergo an electron transfer reaction with Br- with a bimolecular rate constant of 8 × 109 dm3 mol-1 s-1. On the other hand, the OH adduct ( λ max = 310 nm) was oxidized by Fe(CN)63- with a bimolecular rate constant of 6.6 × 107 dm3 mol-1 s-1. The radical cation of benzene is a strong one-electron oxidant with oxidation potential in the range 2.1-2.4 V vs NHE.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 25656 |
| Deposited On: | 04 Dec 2010 11:59 |
| Last Modified: | 07 Jun 2011 06:51 |
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