Ultrafast Excited State Dynamics of trans-4-Aminoazobenzene Studied by Femtosecond Transient Absorption Spectroscopy
文献类型：期刊论文
| 作者 | Wang, Ya-ping; Zhang, Song; Sun, Si-mei; Liu, Kai; Zhang, Bing |
| 刊名 | CHINESE JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2013-12-01 |
| 卷号 | 26期号:6页码:651-655 |
| 关键词 | Photoisomerization trans-4-AAB Femtosecond transient absorption spectroscopy Intersystem crossing |
| 英文摘要 | The ultrafast excited state dynamics of trans-4-aminoazobenzene (trans-4-AAB) in ethanol was investigated by femtosecond transient absorption spectroscopy. After being excited to the S-2 state by 400 nm, trans-4-AAB decays from the S-2 state to the hot S-1 state by internal conversion with time constant of similar to 70 fs. The photoisomerization through inversion mechanism on the Si potential energy surface and the internal conversion from the S-1 state to the hot S-0 state are observed, respectively. The average timescale of these two decay pathways is similar to 0.7 ps. And the vibrational cooling of the hot S-0 state of cis- and trans-4-AAB occur with time constants of similar to 4 and similar to 13 ps, respectively. Furthermore, the ultrafast intersystem crossing process are also observed. The timescale of intersystem crossing from the S-2 state to the T-4 state is about 480 ps while from the S-1 state to the T-2 state is similar to 180 ps. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | AZOBENZENE ; PHOTOISOMERIZATION ; ISOMERIZATION ; INVERSION ; ROTATION ; STORAGE ; FILMS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000330591600006 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/817]  |
| 专题 | 武汉物理与数学研究所_原子分子光物理研究部 |
| 作者单位 | Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ya-ping,Zhang, Song,Sun, Si-mei,et al. Ultrafast Excited State Dynamics of trans-4-Aminoazobenzene Studied by Femtosecond Transient Absorption Spectroscopy[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2013,26(6):651-655. |
| APA | Wang, Ya-ping,Zhang, Song,Sun, Si-mei,Liu, Kai,&Zhang, Bing.(2013).Ultrafast Excited State Dynamics of trans-4-Aminoazobenzene Studied by Femtosecond Transient Absorption Spectroscopy.CHINESE JOURNAL OF CHEMICAL PHYSICS,26(6),651-655. |
| MLA | Wang, Ya-ping,et al."Ultrafast Excited State Dynamics of trans-4-Aminoazobenzene Studied by Femtosecond Transient Absorption Spectroscopy".CHINESE JOURNAL OF CHEMICAL PHYSICS 26.6(2013):651-655. |
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。