Unraveling the effect of solvents on the excited state dynamics of C540A by experimental and theoretical study.

ABSTRACT: In this work, the excited-state dynamics including intramolecular charge transfer (ICT) and the redshift of C540A have been investigated in a series of solvents on the basis of the Kamlet-Taft solvatochromic parameters (π*, α, β) using femtosecond transient absorption spectra and systematic theoretical calculation. We demonstrate that the redshift of the emission peak has a linear relationship with the α and π* scales and the effect of the π* scale is slightly stronger than that of the α scale. Meanwhile, the ICT rates can be suggested as relevant to not only the α scale but also the π* scale. Additionally, C540A-AN has proved that the excited state molecules have a unique inactivation mechanism because of the dark feature of t

SUBMITTER: Ge J 

PROVIDER: S-EPMC9906279 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature