Ultrafast decay dynamics of 2-hydroxypyridine excited to S1 electronic state

Autor:	Yan-jun Min, Wen-peng Yuan, Dong-yuan Yang, Dong-xu Dai, Sheng-rui Yu, Guo-rong Wu, Xue-ming Yang
Rok vydání:	2022
Předmět:	Physical and Theoretical Chemistry
Zdroj:	Chinese Journal of Chemical Physics. 35:242-248
ISSN:	2327-2244 1674-0068
DOI:	10.1063/1674-0068/cjcp2111255
Popis:	The S1 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 S1 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3c81887608f418e65cb3449d62ebf3ca https://doi.org/10.1063/1674-0068/cjcp2111255 Zobrazit plný text záznamu