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Ultrafast Investigation of Excited-State Dynamics in Trans-4-methoxyazobenzene Studied by Femtosecond Transient Absorption Spectroscopy
Wang, Ya-ping1; Li, Chun-hua1; Zhang, Bing2; Qin, Chen3; Zhang, Song2
2018-12-01
Source PublicationCHINESE JOURNAL OF CHEMICAL PHYSICS
ISSN1674-0068
Volume31Issue:6Pages:749-755
AbstractThe 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.
KeywordPhotoisomerization Trans-4-methoxyazobenzene Femtosecond transient absorption spectroscopy
Funding OrganizationNational 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
DOI10.1063/1674-0068/31/cjcp1806155
WOS KeywordN-PI-ASTERISK ; PHOTOISOMERIZATION DYNAMICS ; CIS-AZOBENZENE ; ISOMERIZATION ; FLUORESCENCE ; EFFICIENCY ; MECHANISM
Language英语
Funding ProjectNational 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]
Funding OrganizationNational 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
WOS Research AreaPhysics
WOS SubjectPhysics, Atomic, Molecular & Chemical
WOS IDWOS:000455960700003
PublisherCHINESE PHYSICAL SOC
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.wipm.ac.cn/handle/112942/14025
Collection中国科学院武汉物理与数学研究所
Corresponding AuthorQin, Chen; Zhang, Song
Affiliation1.Hefei Univ Technol, Sch Elect Sci & Appl Phys, Hefei 230009, Anhui, 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.Xinjiang Normal Univ, Sch Phys & Elect Engn, Key Lab Mineral Luminescent Mat & Microstruct Xin, Urumqi 830054, Peoples R China
Recommended Citation
GB/T 7714
Wang, Ya-ping,Li, Chun-hua,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 Wang, Ya-ping,Li, Chun-hua,Zhang, Bing,Qin, Chen,&Zhang, Song.(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 Wang, Ya-ping,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.
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