Different types of hydrogen-bonded complexes would accelerate or delay the excited state proton transfer in 3-hydroxyflavone
文献类型：期刊论文
| 作者 | Yang, Songqiu; Zhang, Yan; Han, Keli |
| 刊名 | JOURNAL OF LUMINESCENCE
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 206页码:46-52 |
| 关键词 | Excited state proton transfer Hydrogen-bonded complex Time-resolved spectroscopy Cam-b3lyp Dual emission |
| ISSN号 | 0022-2313 |
| DOI | 10.1016/j.jlumin.2018.10.024 |
| 通讯作者 | Han, Keli(klhan@dicp.ac.cn) |
| 英文摘要 | 3-hydroxyflavone (3HF) has been found dual emission in polar and protic solvents for many years. The excited state proton transfer (ESPT) is the key to control the dual emissions of 3HF. We found the ESPT rate of 3HF in hexane is faster than in acetonitrile because of the lower ESPT energy barrier in hexane. Hence, it was found there are two ESPT rates in methanol, one is faster than in hexane, and the other is slower than in acetonitrile. Two solvent-solute hydrogen bonded complexes (I and II) response to the two ESPT rates. The energy barrier of ESPT was found the lowest (1.324 kcal/mol) in Complex I, corresponded to the shortest ESPT time constant (< 0.09 ps). In Complex II, the ESPT time constant is the longest (21.97 ps) with the highest ESPT energy barrier (3.865 kcal/mol). Comparing the results of two complexes, we found that intermolecular hydrogen-bonds would accelerate or delay the ESPT of 3HF based on their different types. |
| WOS关键词 | TRANSFER KINETICS ; LUMINESCENT PROPERTIES ; TRANSFER DYNAMICS ; GROUND-STATE ; FLUORESCENCE ; RELAXATION ; ESIPT ; SPECTROSCOPY ; SPECTRA ; POLAR |
| 资助项目 | National Natural Science Foundation of China[21873100] ; National Natural Science Foundation of China[21773226] |
| WOS研究方向 | Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:000451782900011 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/166564]  |
| 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 |
| 通讯作者 | Han, Keli |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Zhongshan Rd 457, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Songqiu,Zhang, Yan,Han, Keli. Different types of hydrogen-bonded complexes would accelerate or delay the excited state proton transfer in 3-hydroxyflavone[J]. JOURNAL OF LUMINESCENCE,2019,206:46-52. |
| APA | Yang, Songqiu,Zhang, Yan,&Han, Keli.(2019).Different types of hydrogen-bonded complexes would accelerate or delay the excited state proton transfer in 3-hydroxyflavone.JOURNAL OF LUMINESCENCE,206,46-52. |
| MLA | Yang, Songqiu,et al."Different types of hydrogen-bonded complexes would accelerate or delay the excited state proton transfer in 3-hydroxyflavone".JOURNAL OF LUMINESCENCE 206(2019):46-52. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。