{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T15:04:07Z","timestamp":1787497447571,"version":"build-2736575974"},"reference-count":57,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2006,3,3]],"date-time":"2006-03-03T00:00:00Z","timestamp":1141344000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ChemPhysChem"],"published-print":{"date-parts":[[2006,3,13]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Spectral and photophysical properties of thioxanthone (9\n                    <jats:italic>H<\/jats:italic>\n                    \u2010thioxanthen\u20109\u2010one, TX) were determined in a few protic solvents (H\n                    <jats:sub>2<\/jats:sub>\n                    O, D\n                    <jats:sub>2<\/jats:sub>\n                    O, hexafluoro\u20102\u2010propanol) and compared with those in aprotic solvents. On the basis of the time\u2010resolved and steady\u2010state emission measurements and available literature data, it has been shown that the dominant S\n                    <jats:sub>1<\/jats:sub>\n                    \u2010TX deactivation process in protic solvents is the formation of the S\n                    <jats:sub>1<\/jats:sub>\n                    \u2010complex. The important modes of deactivation of the S\n                    <jats:sub>1<\/jats:sub>\n                    \u2010complex are fluorescence (\n                    <jats:italic>\u03d5<\/jats:italic>\n                    <jats:sub>F<\/jats:sub>\n                    \u22480.4\u20130.5) and intersystem crossing to the T\n                    <jats:sub>1<\/jats:sub>\n                    state. The S\n                    <jats:sub>1<\/jats:sub>\n                    \u2010complex\u2192S\n                    <jats:sub>0<\/jats:sub>\n                    internal conversion plays, at most, an insignificant role in S\n                    <jats:sub>1<\/jats:sub>\n                    \u2010complex deactivation, which is evidenced by the absence of an isotope effect of protic solvents on the lifetime and quantum yield of fluorescence.\n                  <\/jats:p>","DOI":"10.1002\/cphc.200500375","type":"journal-article","created":{"date-parts":[[2006,3,3]],"date-time":"2006-03-03T05:46:37Z","timestamp":1141364797000},"page":"597-606","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":39,"title":["Spectral and Photophysical Properties of Thioxanthone in Protic and Aprotic Solvents: The Role of Hydrogen Bonds in S\n                    <sub>1<\/sub>\n                    \u2010Thioxanthone Deactivation"],"prefix":"10.1002","volume":"7","author":[{"given":"Ewa","family":"Krystkowiak","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrzej","family":"Maciejewski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacek","family":"Kubicki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2006,3,3]]},"reference":[{"key":"e_1_2_6_1_2","unstructured":"W. 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