Controlling Excited State Localization in Bichromophoric Photosensitizers via the Bridging Group.

ABSTRACT: A series of photosensitizers comprised of both an inorganic and an organic chromophore are investigated in a joint synthetic, spectroscopic, and theoretical study. This bichromophoric design strategy provides a means by which to significantly increase the excited state lifetime by isolating the excited state away from the metal center following intersystem crossing. A variable bridging group is incorporated between the donor and acceptor units of the organic chromophore, and its influence on the excited state properties is explored. The Franck-Condon (FC) photophysics and subsequent excited state relaxation pathways are investigated with a suite of steady-state and time-resolved spectroscopic techniques in combination with scalar-relativistic quantum chemical calculations. It is demonstrat

SUBMITTER: Shillito GE 

PROVIDER: S-EPMC10951951 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature