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Ultrafast decay dynamics of 2-hydroxypyridine excited to S1 electronic state†.
- Source :
- Chinese Journal of Chemical Physics (1674-0068); Apr2022, Vol. 35 Issue 2, p242-248, 7p
- Publication Year :
- 2022
-
Abstract
- The S<subscript>1</subscript> state decay dynamics of 2-hydroxypyridine following UV excitation at a wavelength range of 276.9−250.0 nm is investigated using femtosecond time-resolved photoelectron imaging technique. Based on pump wavelength dependence of the decay dynamics, a refined decay picture is proposed. At pump wavelength of 276.9 nm, the S<subscript>1</subscript> state is depopulated through intersystem crossing to lower triplet state(s). At 264.0 nm, both intersystem crossing to lower triplet state(s) and internal conversion to the ground state are in operation. At 250.0 nm, internal conversion to the ground state becomes dominated. [ABSTRACT FROM AUTHOR]
- Subjects :
- PHOTOELECTRONS
PHOTOELECTRON spectra
WAVELENGTHS
Subjects
Details
- Language :
- English
- ISSN :
- 16740068
- Volume :
- 35
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Chinese Journal of Chemical Physics (1674-0068)
- Publication Type :
- Academic Journal
- Accession number :
- 156623167
- Full Text :
- https://doi.org/10.1063/1674-0068/cjcp2111255