{"title":"咔唑在氨水介质中脱质子化反应的平衡pK*研究","authors":"Nitin Chattopadhyay, Mihir Chowdhury","doi":"10.1016/0047-2670(87)87025-9","DOIUrl":null,"url":null,"abstract":"<div><p>Forward and backward rate constants for the excited state deprotonation reaction of carbazole in ammoniacal aqueous media were determined from both steady state (Weller's fluorescence quenching technique) and direct kinetic studies. The results establish that the equilibrium p<em>K</em><sup>*</sup> may be significantly different from the “apparent” p<em>K</em><sup>*</sup> obtained by the fluorometric titration method.</p></div>","PeriodicalId":16771,"journal":{"name":"Journal of Photochemistry","volume":"38 ","pages":"Pages 301-309"},"PeriodicalIF":0.0000,"publicationDate":"1987-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0047-2670(87)87025-9","citationCount":"15","resultStr":"{\"title\":\"Equilibrium pK* of carbazole studied by the deprotonation reaction in ammoniacal aqueous media\",\"authors\":\"Nitin Chattopadhyay, Mihir Chowdhury\",\"doi\":\"10.1016/0047-2670(87)87025-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Forward and backward rate constants for the excited state deprotonation reaction of carbazole in ammoniacal aqueous media were determined from both steady state (Weller's fluorescence quenching technique) and direct kinetic studies. The results establish that the equilibrium p<em>K</em><sup>*</sup> may be significantly different from the “apparent” p<em>K</em><sup>*</sup> obtained by the fluorometric titration method.</p></div>\",\"PeriodicalId\":16771,\"journal\":{\"name\":\"Journal of Photochemistry\",\"volume\":\"38 \",\"pages\":\"Pages 301-309\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1987-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0047-2670(87)87025-9\",\"citationCount\":\"15\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Photochemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0047267087870259\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Photochemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0047267087870259","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Equilibrium pK* of carbazole studied by the deprotonation reaction in ammoniacal aqueous media
Forward and backward rate constants for the excited state deprotonation reaction of carbazole in ammoniacal aqueous media were determined from both steady state (Weller's fluorescence quenching technique) and direct kinetic studies. The results establish that the equilibrium pK* may be significantly different from the “apparent” pK* obtained by the fluorometric titration method.
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