Photoisomerization Dynamics of 2-[(E)-(4-fluorophenyl)diazenyl]-1 H -imidazole: A Theoretical and Experimental Insight
- Title
- Photoisomerization Dynamics of 2-[(E)-(4-fluorophenyl)diazenyl]-1 H -imidazole: A Theoretical and Experimental Insight
- Creator
- John A.M.; Xavier S.S.; Benny C.; Philip R.; Balakrishnan S.P.
- Description
- This study investigates the photoresponsive behavior of substituted azobenzenes with a specific focus on their nonlinear optical response. This study suggests that azoimidazole substitution is a better alternative to azobenzene derivatives for nonlinear optical responses. The synthesis, characterization, photophysical property and isomerization pathway of 2-[(E)-(4-fluorophenyl)diazenyl]-1H-imidazole (E-2g) are presented as an optical limiter through a comprehensive blend of experimental and theoretical approaches. Notably, E-2g exhibited a lower energy barrier than reported azobenzenes. The trans-to-cis photostationary state was reached in 75 min, while the cis-to-trans state was achieved in 60 min at 354 nm. The study further explores the photoisomerization pathway of E-2g, highlighting its nonlinear absorption, which has a nonlinear absorption coefficient (?eff) of 8.8 10-11 m/W at 20 ?J, as determined by Z-scan measurements. The results suggest that E-2g exhibits significant nonlinear absorption characteristics, which helps in applications requiring protection from intense light sources. 2024 World Scientific Publishing Company.
- Source
- Journal of Computational Biophysics and Chemistry
- Date
- 2024-01-01
- Publisher
- World Scientific
- Subject
- Azoimidazole; nonlinear optics; optical limiters; photoisomerization; TD-DFT
- Coverage
- John A.M., Department of Chemistry, School of Sciences, Christ University, Central Campus, Karnataka, Bengaluru, 560029, India; Xavier S.S., Light and Matter Physics Group, Raman Research Institute, C.V. Raman Avenue, Karnataka, Bangalore, 560080, India; Benny C., Light and Matter Physics Group, Raman Research Institute, C.V. Raman Avenue, Karnataka, Bangalore, 560080, India; Philip R., Light and Matter Physics Group, Raman Research Institute, C.V. Raman Avenue, Karnataka, Bangalore, 560080, India; Balakrishnan S.P., Department of Chemistry, School of Sciences, Christ University, Central Campus, Karnataka, Bengaluru, 560029, India
- Rights
- Restricted Access
- Relation
- ISSN: 27374165
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
John A.M.; Xavier S.S.; Benny C.; Philip R.; Balakrishnan S.P., “Photoisomerization Dynamics of 2-[(E)-(4-fluorophenyl)diazenyl]-1 H -imidazole: A Theoretical and Experimental Insight,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 23, 2025, https://archives.christuniversity.in/items/show/13425.