Asymmetry in the Q _y Fluorescence and Absorption Spectra of Chlorophyll a Pertaining to Exciton Dynamics.

ABSTRACT: Significant asymmetry found between the high-resolution Q _y emission and absorption spectra of chlorophyll-a is herein explained, providing basic information needed to understand photosynthetic exciton transport and photochemical reactions. The Q _y spectral asymmetry in chlorophyll has previously been masked by interference in absorption from the nearby Q _x transition, but this effect has recently been removed using extensive quantum spectral simulations or else by analytical inversion of absorption and magnetic circular dichroism data, allowing high-resolution absorption information to be accurately determined from fluorescence-excitation spectra. To compliment this, here, we measure and thoroughly analyze the high-resolution different

SUBMITTER: Reimers JR 

PROVIDER: S-EPMC7738624 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature