Dual fluorescence of the quinolinium cation
pH and Hammett acidity dependences of the blue fluorescences of the quinolinium ion and some related species indicate that the thermally relaxed lLb and'L, states of the quinolinium ion are degenerate and that fluorescence occurs from both states. The quinolinium cation is a weaker acid in one...
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1973
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| Online Access: | http://hdl.handle.net/10725/6767 http://dx.doi.org/10.1021/ja00790a002 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://pubs.acs.org/doi/abs/10.1021/ja00790a002?journalCode=jacsat |
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| _version_ | 1864513480673984512 |
|---|---|
| author | Capomacchia, Anthony C. |
| author2 | Schulman, Stephen G. |
| author2_role | author |
| author_facet | Capomacchia, Anthony C. Schulman, Stephen G. |
| author_role | author |
| dc.creator.none.fl_str_mv | Capomacchia, Anthony C. Schulman, Stephen G. |
| dc.date.none.fl_str_mv | 1973 2017-12-11T13:39:18Z 2017-12-11T13:39:18Z 2017-12-11 |
| dc.identifier.none.fl_str_mv | 0002-7863 http://hdl.handle.net/10725/6767 http://dx.doi.org/10.1021/ja00790a002 Schulman, S. G., & Capomacchia, A. C. (1973). Dual fluorescence of the quinolinium cation. Journal of the American Chemical Society, 95(9), 2763-2766. http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://pubs.acs.org/doi/abs/10.1021/ja00790a002?journalCode=jacsat |
| dc.language.none.fl_str_mv | en |
| dc.relation.none.fl_str_mv | Journal of the American Chemical Society |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.title.none.fl_str_mv | Dual fluorescence of the quinolinium cation |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | pH and Hammett acidity dependences of the blue fluorescences of the quinolinium ion and some related species indicate that the thermally relaxed lLb and'L, states of the quinolinium ion are degenerate and that fluorescence occurs from both states. The quinolinium cation is a weaker acid in one of these states than in the ground state and a stronger acid in the other excited state. Spectral shifts upon protonation suggest that the other excited state. Spectral shifts upon protonation suggest that the L state is the more basic of the two low-lying excited singlet states. Prototropic equilibrium in the more basic excited state is not complete while the more acidic excited state equilibrium appears to be attained. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | LAURepo_cfb44869bed59715cf671bf2cc78cebb |
| identifier_str_mv | 0002-7863 Schulman, S. G., & Capomacchia, A. C. (1973). Dual fluorescence of the quinolinium cation. Journal of the American Chemical Society, 95(9), 2763-2766. |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/6767 |
| publishDate | 1973 |
| repository.mail.fl_str_mv | |
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| spelling | Dual fluorescence of the quinolinium cationCapomacchia, Anthony C.Schulman, Stephen G.pH and Hammett acidity dependences of the blue fluorescences of the quinolinium ion and some related species indicate that the thermally relaxed lLb and'L, states of the quinolinium ion are degenerate and that fluorescence occurs from both states. The quinolinium cation is a weaker acid in one of these states than in the ground state and a stronger acid in the other excited state. Spectral shifts upon protonation suggest that the other excited state. Spectral shifts upon protonation suggest that the L state is the more basic of the two low-lying excited singlet states. Prototropic equilibrium in the more basic excited state is not complete while the more acidic excited state equilibrium appears to be attained.PublishedN/A2017-12-11T13:39:18Z2017-12-11T13:39:18Z19732017-12-11Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article0002-7863http://hdl.handle.net/10725/6767http://dx.doi.org/10.1021/ja00790a002Schulman, S. G., & Capomacchia, A. C. (1973). Dual fluorescence of the quinolinium cation. Journal of the American Chemical Society, 95(9), 2763-2766.http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.phphttp://pubs.acs.org/doi/abs/10.1021/ja00790a002?journalCode=jacsatenJournal of the American Chemical Societyinfo:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/67672021-03-19T10:43:11Z |
| spellingShingle | Dual fluorescence of the quinolinium cation Capomacchia, Anthony C. |
| status_str | publishedVersion |
| title | Dual fluorescence of the quinolinium cation |
| title_full | Dual fluorescence of the quinolinium cation |
| title_fullStr | Dual fluorescence of the quinolinium cation |
| title_full_unstemmed | Dual fluorescence of the quinolinium cation |
| title_short | Dual fluorescence of the quinolinium cation |
| title_sort | Dual fluorescence of the quinolinium cation |
| url | http://hdl.handle.net/10725/6767 http://dx.doi.org/10.1021/ja00790a002 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://pubs.acs.org/doi/abs/10.1021/ja00790a002?journalCode=jacsat |