Title: Formation of Tryptophan Radicals in Irradiated Aqueous Solutions of Hexachloroplatinate(IV): A Flash Photolysis Study
Abstract: Photochemistry and PhotobiologyVolume 70, Issue 4 p. 565-567 Formation of Tryptophan Radicals in Irradiated Aqueous Solutions of Hexachloroplatinate(IV): A Flash Photolysis Study Ling Zang, Ling Zang Department of Chemistry, Center for Photochemical Sciences, Bowling Green State University, Bowling Green, OH, USASearch for more papers by this authorMichael A. J. Rodgers, Michael A. J. Rodgers Department of Chemistry, Center for Photochemical Sciences, Bowling Green State University, Bowling Green, OH, USA *To whom correspondence should be addressed at: Department of Chemistry, Bowling Green State University, Bowling Green, OH 43403, USA. Fax: 419-372-9809; e-mail:[email protected] for more papers by this author Ling Zang, Ling Zang Department of Chemistry, Center for Photochemical Sciences, Bowling Green State University, Bowling Green, OH, USASearch for more papers by this authorMichael A. J. Rodgers, Michael A. J. Rodgers Department of Chemistry, Center for Photochemical Sciences, Bowling Green State University, Bowling Green, OH, USA *To whom correspondence should be addressed at: Department of Chemistry, Bowling Green State University, Bowling Green, OH 43403, USA. Fax: 419-372-9809; e-mail:[email protected] for more papers by this author First published: 02 January 2008 https://doi.org/10.1111/j.1751-1097.1999.tb08252.x AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract The oxidation of tryptophan photosensitized by PtCl62-has been investigated in aqueous solutions at different pH using nanosecond laser flash photolysis. Cationic and neutral radicals of tryptophan were detected at pH 2.8 and 8.5, respectively. The generation of the radical was attributed to oxidation by Cl2-that was formed from the homolytic bond cleavage in the excited state of PtCl62-The bimolecular rate constant derived from the kinetics analysis, 2.8 × 0.2 times; 109M-1s-1, is in good agreement with the value obtained in earlier pulse radiolysis studies. Both the cationic and neutral radicals decayed by second-order kinetics, consistent with the dimerization process. Volume70, Issue4October 1999Pages 565-567 RelatedInformation
Publication Year: 1999
Publication Date: 1999-01-01
Language: en
Type: article
Indexed In: ['crossref']
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