Mittal, L. J. ; Mittal, J. P. ; Hayon, E. (1973) Biphotonic photodissociation of phenylalanine in aqueous solution at 20°C Chemical Physics Letters, 18 (3). pp. 319-322. ISSN 0009-2614
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/000926...
Related URL: http://dx.doi.org/10.1016/0009-2614(73)80178-2
Abstract
The photophysical processes leading to the photochemical changes in the aromatic amino acid phenylalanine were examined as a function of pH in aqueous solutions at 20 ° C, using the technique of flash photolysis. The photodissociation reaction to form the benzyl ( φ CH2) radical was found to occur via a biphotonic process at pH 5.9 and pH 0.45, and via a monophotonic process at pH 11.0. Using characteristics quenches, the precursor of the photodissociation of phenylalanine at all pH values was shown to be a long-lived (triplet) excited state.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 25654 |
| Deposited On: | 04 Dec 2010 11:59 |
| Last Modified: | 08 Jun 2011 06:31 |
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