Dielectric-Controlled Ultrafast Twisted Intramolecular Charge-Transfer VS trans to cis Isomerization Pathways in a Push-Pull Stilbene: Global Analysis Perspectives

被引：0

作者：

Dhamija, Shaina ^{[1
,2
]}

K. De, Arijit ^{[1
]}

机构：

[1] Indian Inst Sci Educ & Res Mohali, Dept Chem Sci, Condensed Phase Dynam Grp, Sect 81, SAS Nagar 140306, Punjab, India

[2] Boston Univ, Dept Chem, 590 Commonwealth Ave, Boston, MA 02215 USA

来源：

CHEMPHOTOCHEM | 2024年 / 8卷 / 12期

关键词：

Twisted intramolecular charge transfer (TICT); trans to cis isomerization; Push-pull stilbenes; DUAL EXCITED-STATES; 4-DIMETHYLAMINO; 4-CYANOSTILBENE; ABSORPTION; 4-DIMETHYLAMINO-4-NITROSTILBENE; FLUORESCENCE; DYNAMICS; MODEL;

D O I：

10.1002/cptc.202400182

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We explore excited-state dynamics of 4,4'-dimethylaminonitrostilbene (DNS), a push-pull stilbene, undergoing twisted intramolecular charge transfer and/or trans to cis isomerization, which is dependent on solvent polarity. We show how global analysis of femtosecond pump/broadband-probe data aids in elucidating the involvement of interconverting conformers and/or isomers, and the timescales associated with such interconversion, often unexplored in single-wavelength kinetic analysis.

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页数：7

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