Analysis of the phosphorescence of thianthren crystals |
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| Authors: | A. Arena S. Campagna A. M. Mezzasalma R. Saija G. Saitta |
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| Affiliation: | (1) Istituto di Struttura della Materia dell'Università, Messina, Italia;(2) Dipartimento di Chimica Inorganica e Struttura Molecolare dell'Università, Salita Sperone 31, I-98166, Sant'Agata, Messina, Italia |
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| Abstract: | Summary The room temperature phosphorescence of crystalline thianthren in the 1.6–3.3 eV energy region has been measured using time delays going from 0.03 to 9.5 ms. The time dependence of the emission spectra which show the presence of three resolved bands, was analysed by means of a numerical best-fitting procedure, and the results obtained have been compared with those predicted by means ofab initio and semiempirical molecular orbital calculations. |
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| Keywords: | Fluorescence and phosphorescence radiationless transitions (intersystem crossing, internal conversion) |
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