Ultrafast Investigation of Excited-State Dynamics in Trans-4-methoxyazobenzene Studied by Femtosecond Transient Absorption Spectroscopy
文献类型：期刊论文
| 作者 | Zhang, Song2; Qin, Chen1; Zhang, Bing2; Li, Chun-hua3; Wang, Ya-ping3 |
| 刊名 | CHINESE JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2018-12-01 |
| 卷号 | 31期号:6页码:749-755 |
| 关键词 | Photoisomerization Trans-4-methoxyazobenzene Femtosecond transient absorption spectroscopy |
| ISSN号 | 1674-0068 |
| DOI | 10.1063/1674-0068/31/cjcp1806155 |
| 英文摘要 | The ultrafast photoisomerization and excited-state dynamics of trans-4-methoxyazobenzene (trans-4-MAB) in solutions were investigated by femtosecond transient absorption spectroscopy and quantum chemistry calculations. After being excited to the S-2 state, the two-dimensional transient absorptions spectra show that cis-4-MAB is produced and witnessed by the permanent positive absorption in 400-480 nm. Three decay components are determined to be 0.11, 1.4 and 2.9 ps in ethanol, and 0.16, 1.5 and 7.5 ps in ethylene glycol, respectively. The fast component is assigned to the internal conversion from the S-2 to S-1 state. The other relaxation pathways are correlated with the decay of the S-1 state via internal conversion and isomerization, and the vibrational cooling of the hot S-0 state of the cis-isomer. Comparing of the dynamics in different solvents, it is demonstrated that the photoisomerization pathway undergoes the inversion mechanism rather than the rotation mechanism. |
| WOS关键词 | N-PI-ASTERISK ; PHOTOISOMERIZATION DYNAMICS ; CIS-AZOBENZENE ; ISOMERIZATION ; FLUORESCENCE ; EFFICIENCY ; MECHANISM |
| 资助项目 | National Natural Science Foundation of China[21603049] ; National Natural Science Foundation of China[11674355] ; National Natural Science Foundation of China[11705043] ; National Natural Science Foundation of China[21327804] ; National Natural Science Foundation of China[11364043] ; Fundamental Research Funds for the Central Universities[JZ2015HGBZ0532] ; Industry-University-Research Fund of Hefei University of Technology Xuancheng Campus[XC2016JZBZ11] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2016D01A058] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000455960700003 |
| 出版者 | CHINESE PHYSICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Industry-University-Research Fund of Hefei University of Technology Xuancheng Campus ; Industry-University-Research Fund of Hefei University of Technology Xuancheng Campus ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Industry-University-Research Fund of Hefei University of Technology Xuancheng Campus ; Industry-University-Research Fund of Hefei University of Technology Xuancheng Campus ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Industry-University-Research Fund of Hefei University of Technology Xuancheng Campus ; Industry-University-Research Fund of Hefei University of Technology Xuancheng Campus ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Industry-University-Research Fund of Hefei University of Technology Xuancheng Campus ; Industry-University-Research Fund of Hefei University of Technology Xuancheng Campus ; Natural Science Foundation of Xinjiang Uygur Autonomous Region ; Natural Science Foundation of Xinjiang Uygur Autonomous Region |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/14024]  |
| 专题 | 中国科学院武汉物理与数学研究所 |
| 通讯作者 | Zhang, Song; Qin, Chen |
| 作者单位 | 1.Xinjiang Normal Univ, Sch Phys & Elect Engn, Key Lab Mineral Luminescent Mat & Microstruct Xin, Urumqi 830054, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China 3.Hefei Univ Technol, Sch Elect Sci & Appl Phys, Hefei 230009, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Song,Qin, Chen,Zhang, Bing,et al. Ultrafast Investigation of Excited-State Dynamics in Trans-4-methoxyazobenzene Studied by Femtosecond Transient Absorption Spectroscopy[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2018,31(6):749-755. |
| APA | Zhang, Song,Qin, Chen,Zhang, Bing,Li, Chun-hua,&Wang, Ya-ping.(2018).Ultrafast Investigation of Excited-State Dynamics in Trans-4-methoxyazobenzene Studied by Femtosecond Transient Absorption Spectroscopy.CHINESE JOURNAL OF CHEMICAL PHYSICS,31(6),749-755. |
| MLA | Zhang, Song,et al."Ultrafast Investigation of Excited-State Dynamics in Trans-4-methoxyazobenzene Studied by Femtosecond Transient Absorption Spectroscopy".CHINESE JOURNAL OF CHEMICAL PHYSICS 31.6(2018):749-755. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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。