{"title":"Gamma and pulse radiolysis of methanolic solutions of triphenylphosphine","authors":"M. Venturi, A. Breccia, F. Busi, Q.G. Mulazzani","doi":"10.1016/0020-7055(76)90039-5","DOIUrl":null,"url":null,"abstract":"<div><p>In irradiated methanolic solutions of triphenylphosphine (Ph<sub>3</sub>P) deaerated with argon or saturated with N<sub>2</sub>O a transient spectrum has been detected. This spectrum is attributed to Ph<sub>3</sub>PCH<sub>2</sub>OH and a value of <em>k</em><sub>(CH<sub>2</sub>OH+Ph<sub>3</sub>P)</sub> = 8.8 <em>x</em> 10<sup>9</sup><em>mol</em><sup>−1</sup><em>dm</em><sup>3</sup><em>S</em><sup>−</sup> has been detemined. No evidence has been obtained for a reaction between e<sub>sol</sub><sup>−1</sup> and Ph<sub>3</sub>P in methanol.</p><p>The gamma-irradiation of oxygen-saturated methanolic solutions of Ph<sub>3</sub>P have shown that, under these conditions, Ph<sub>3</sub>P is oxidized to Ph<sub>3</sub>PO according to a chain reaction mechanism. The experimental results are in good agreement with the equation for <em>G</em>(-Ph<sub>3</sub>P) = <em>G</em>(Ph<sub>3</sub>PO) obtained by steady-state treatment of the proposed mechanism.</p></div>","PeriodicalId":100688,"journal":{"name":"International Journal for Radiation Physics and Chemistry","volume":"8 6","pages":"Pages 673-677"},"PeriodicalIF":0.0000,"publicationDate":"1976-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0020-7055(76)90039-5","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal for Radiation Physics and Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0020705576900395","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
In irradiated methanolic solutions of triphenylphosphine (Ph3P) deaerated with argon or saturated with N2O a transient spectrum has been detected. This spectrum is attributed to Ph3PCH2OH and a value of k(CH2OH+Ph3P) = 8.8 x 109mol−1dm3S− has been detemined. No evidence has been obtained for a reaction between esol−1 and Ph3P in methanol.
The gamma-irradiation of oxygen-saturated methanolic solutions of Ph3P have shown that, under these conditions, Ph3P is oxidized to Ph3PO according to a chain reaction mechanism. The experimental results are in good agreement with the equation for G(-Ph3P) = G(Ph3PO) obtained by steady-state treatment of the proposed mechanism.
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