Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Multifunctional fluorescent diarylethene: time-resolved study of photochemistry. / Semionova, Veronica V; Pozdnyakov, Ivan P; Grivin, Vjacheslav P и др.
в: Physical chemistry chemical physics : PCCP, Том 25, № 20, 24.05.2023, стр. 14179-14192.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Multifunctional fluorescent diarylethene: time-resolved study of photochemistry
AU - Semionova, Veronica V
AU - Pozdnyakov, Ivan P
AU - Grivin, Vjacheslav P
AU - Plyusnin, Victor F
AU - Tsentalovich, Yuri P
AU - Shirinian, Valerii Z
AU - Melnikov, Alexei A
AU - Chekalin, Sergei V
AU - Lvov, Andrey G
AU - Glebov, Evgeni M
PY - 2023/5/24
Y1 - 2023/5/24
N2 - A study of luminescence and photochromic properties of (E)-2,3-bis(2,5-dimethylthiophen-3-yl)-5-(4-(pyrrolidin-1-yl)benzylidene)cyclopent-2-en-1-one, which is a diarylethene with a push-pull system between carbonyl and dimethylamino groups, was performed using time-resolved methods. The intramolecular charge transfer (ICT) process as well as 6π-electrocyclization and E-/Z-isomerization contribute to the complex light-induced properties of this molecule. Formation of unexpected short-lived intermediates was detected in the time range from 100 fs to 100 μs. A model based on two processes (additional photocyclization and interconversion between conformers) was proposed to rationalize this result. The key intermediates existing in the picosecond time domain are so-called precursors, which are proposed for both parallel (p) and anti-parallel (ap) isomers of the open form. In general, fast light-induced processes for the fluorescent diarylcyclopentenones are much more complicated than for the parent cyclopentenone-based DAE.
AB - A study of luminescence and photochromic properties of (E)-2,3-bis(2,5-dimethylthiophen-3-yl)-5-(4-(pyrrolidin-1-yl)benzylidene)cyclopent-2-en-1-one, which is a diarylethene with a push-pull system between carbonyl and dimethylamino groups, was performed using time-resolved methods. The intramolecular charge transfer (ICT) process as well as 6π-electrocyclization and E-/Z-isomerization contribute to the complex light-induced properties of this molecule. Formation of unexpected short-lived intermediates was detected in the time range from 100 fs to 100 μs. A model based on two processes (additional photocyclization and interconversion between conformers) was proposed to rationalize this result. The key intermediates existing in the picosecond time domain are so-called precursors, which are proposed for both parallel (p) and anti-parallel (ap) isomers of the open form. In general, fast light-induced processes for the fluorescent diarylcyclopentenones are much more complicated than for the parent cyclopentenone-based DAE.
U2 - 10.1039/d2cp05922c
DO - 10.1039/d2cp05922c
M3 - Article
C2 - 37165694
VL - 25
SP - 14179
EP - 14192
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
SN - 1463-9076
IS - 20
ER -
ID: 49538418