TY - JOUR
T1 - Photochemical reaction mechanisms of 4,5-dimethoxy-2-nitrobenzyl acetate analysed by a sub-10 fs near-ultraviolet pulse laser
AU - Hashimoto, Sena
AU - Hamada, Kenta
AU - Iwakura, Izumi
AU - Yabushita, Atsushi
AU - Kobayashi, Takayoshi
AU - Fujita, Hirotaka
AU - Takeda, Kento
AU - Ono, Yuta
AU - Chikaraishi Kasuga, Noriko
AU - Yamaguchi, Kazuo
PY - 2019/8/1
Y1 - 2019/8/1
N2 - The present study examined the electronic dynamics of 4,5-dimethoxy-2-nitrobenzyl acetate after π-π* excitation. Pump-probe measurement using a near-ultraviolet sub-10 fs pulse laser revealed that the lifetime of the S * (π-π*) state is 500 fs after photoexcitation to produce the S * (n-π*) state and that the lifetime of the S * (n-π*) state is 1000 fs. By studying different alpha substituents, the lifetimes of the S * (π-π*) state and the S * (n-π*) were found to be independent on the alpha substituents.
AB - The present study examined the electronic dynamics of 4,5-dimethoxy-2-nitrobenzyl acetate after π-π* excitation. Pump-probe measurement using a near-ultraviolet sub-10 fs pulse laser revealed that the lifetime of the S * (π-π*) state is 500 fs after photoexcitation to produce the S * (n-π*) state and that the lifetime of the S * (n-π*) state is 1000 fs. By studying different alpha substituents, the lifetimes of the S * (π-π*) state and the S * (n-π*) were found to be independent on the alpha substituents.
KW - O-Nitrobenzyl acetate
KW - Photodegradation
KW - Real-time spectroscopy
KW - Sub-10 fs pulse laser
UR - http://www.scopus.com/inward/record.url?scp=85065512143&partnerID=8YFLogxK
U2 - 10.1016/j.chemphys.2019.04.031
DO - 10.1016/j.chemphys.2019.04.031
M3 - Article
AN - SCOPUS:85065512143
VL - 524
SP - 70
EP - 76
JO - Chemical Physics
JF - Chemical Physics
SN - 0301-0104
ER -