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ID 30794
本文ファイル
著者
キーワード
Chromone
Vapor phase
Phosphorescence
Temperature dependence
Energy levels
NDC
化学
抄録(英)
Emission and excitation spectra of chromone and 6-fluorochromone have been measured in the vapor phase at different temperatures and pressures along with the absorption spectra. The emission is shown to consist of the (3)(n, pi*) phosphorescence accompanied by weak S-1 (n, pi*) delayed fluorescence. It is inferred from the temperature dependence of the phosphorescence intensity that the (3)(n, pi*) state is located at energies below the (3)(pi, pi*) state for chromone and 6-fluorochromone vapors. The relaxation processes in the vapor phase are discussed based on the pressure and excitation energy dependence of the relative phosphorescence yields. The data include the vibrational analyses of the emission spectra based on the results of the DFT calculations at the B3LYP/6-311 + G(p, d) level.
掲載誌名
Journal of Photochemistry and Photobiology A: Chemistry
214巻
1号
開始ページ
10
終了ページ
15
出版年月日
2010-07-05
出版者
Elsevier Science BV
ISSN
1010-6030
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright (c) 2010 Elsevier B.V.
関連情報URL
部局名
総合科学研究科