Kumar, Awadhesh ; Naik, P. D. ; Saini, R. D. ; Mittal, J. P. (1999) Direct evidence of a radical channel in photodissociation of 1,4-cyclohexadiene with ArF laser at 193 nm Chemical Physics Letters, 309 (3-4). pp. 191-197. ISSN 0009-2614
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00092...
Related URL: http://dx.doi.org/10.1016/S0009-2614(99)00697-1
Abstract
Flash-photolysis of 1,4-cyclohexadiene with ArF laser at 193 nm is investigated. Cyclohexadienyl radical with λ max at 300 nm is observed as direct evidence for the simultaneous occurrence of a radical dissociation channel along with the concerted molecular channel to form benzene and hydrogen. The radical decays with first-order kinetics with a rate coefficient of (3.0 ± 0.2)× 104 s-1. The activation barrier and enthalpy of reaction are evaluated using semi-empirical PM3MM and HF/STO-3G theories and compared with available experimental results.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 25657 |
| Deposited On: | 04 Dec 2010 11:59 |
| Last Modified: | 07 Jun 2011 06:48 |
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