Fluorescence quenching phenomena facilitated by excited-state hydrogen bond strengthening for fluorenone derivatives in alcohols
文献类型：期刊论文
| 作者 | Liu, Yu-Hui; Zhao, Guang-Jiu; Li, Guang-Yue; Han, Ke-Li |
| 刊名 | journal of photochemistry and photobiology a-chemistry
 |
| 出版日期 | 2010-01-25 |
| 卷号 | 209期号:2-3页码:181-185 |
| 关键词 | Hydrogen bonding Excited-state Fluorescence quenching TD-DFT Internal conversion |
| 英文摘要 | spectroscopic studies on benzo[b]fluorenone (bf) solvatochromism in several aprotic and alcoholic solvents have been performed to investigate the fluorescence quenching by hydrogen bonding and proposed a weaker ability to form intermolecular hydrogen bond of bf than fluorenone (fn). in this work, the time-dependent density functional theory (td-dft) method was used to study the excited-state hydrogen bonding of both fn and bf in ethanol (etoh) solvent. as a result, it is demonstrated by our theoretical calculations that the hydrogen bond of bf-etoh complex is almost identical with that of fn-etoh. moreover, the fluorescence quantum yields of fn and bf in the alcoholic solvent is efficiently dependent on the energy gap between the lowest excited singlet state (fluorescent state) and ground state, which can be used to explain the fluorescence quenching by the excited-state hydrogen bond strengthening. (c) 2009 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | radiationless deactivation ; large molecules ; high-pressure ; aminofluorenones ; transitions ; chromophore ; mechanism ; dynamics ; solvents ; methanol |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000274680400013 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142076]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yu-Hui,Zhao, Guang-Jiu,Li, Guang-Yue,et al. Fluorescence quenching phenomena facilitated by excited-state hydrogen bond strengthening for fluorenone derivatives in alcohols[J]. journal of photochemistry and photobiology a-chemistry,2010,209(2-3):181-185. |
| APA | Liu, Yu-Hui,Zhao, Guang-Jiu,Li, Guang-Yue,&Han, Ke-Li.(2010).Fluorescence quenching phenomena facilitated by excited-state hydrogen bond strengthening for fluorenone derivatives in alcohols.journal of photochemistry and photobiology a-chemistry,209(2-3),181-185. |
| MLA | Liu, Yu-Hui,et al."Fluorescence quenching phenomena facilitated by excited-state hydrogen bond strengthening for fluorenone derivatives in alcohols".journal of photochemistry and photobiology a-chemistry 209.2-3(2010):181-185. |
入库方式： OAI收割
来源：大连化学物理研究所
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