A Caltech Library Service

Symmetry breaking charge transfer processes of zinc dipyrrin complexes

Trinh, Cong and Kirlikovali, Kent and Das, Saptaparna and Bradforth, Stephen E. and Ener, Maraia E. and Gray, Harry B. and Djurovich, Peter I. and Thompson, Mark E. (2013) Symmetry breaking charge transfer processes of zinc dipyrrin complexes. In: 245th ACS National Meeting & Exposition, Abstracts of Papers, April 7-11, 2013, New Orleans, LA.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


Photoinduced charge transfer (CT) via symmetry breaking (SB) processes plays a crucial role in photosynthetic reaction center of biol. systems. In such systems, which contain two or more identical and sym. chromophores, CT process from one to another chromophore occurs upon photo-excitation, thus breaking the symmetry. It is of great interest to apply SBCT processes in org. photovoltaics (OPV) and related systems. For application to OPVs, it is desirable for compds. that undergo SB processes to have absorption in the visible spectrum. The most well-documented compds. for SB phenomenon, such as bianthryl derivs., do not absorb visible light. Herein we present study on Zinc Dipyrrin complexes, which contain two identical dipyrrin ligands and absorb strongly at 450-550 nm. These compds. undergo efficient SBCT processes in polar solvents; the photoinduced CT state from the singlet excited state occurs in 4-7 ps, and then recombines back to the triplet state in 1-4 ns.

Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription Website
Gray, Harry B.0000-0002-7937-7876
Thompson, Mark E.0000-0002-7764-4096
Additional Information:© 2013 American Chemical Society.
Record Number:CaltechAUTHORS:20131101-085854371
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42175
Deposited By: Tony Diaz
Deposited On:01 Nov 2013 17:47
Last Modified:09 Mar 2020 13:19

Repository Staff Only: item control page