Abstract

ABSTRACT OF THE DISSERTATIONPhotophysical Characterization and Wavelength Tuning of Natural and Synthetic Oxobacteriochlorins and BiohybridsByDonald L. HoodDoctor of Philosophy in ChemistryWashington University in St. Louis, 2018Dr. Dewey Holten, ChairpersonHerein is discussed the theoretical and practical unpinnings of photophysical behaviors and kinetic constants for tetrapyrrole macrocycles, to wit, porphyrins, chlorins, and bacteriochlorins. Understanding the characteristic photophysical response of tetrapyrroles to changes in environment or substituents is important to designing synthetic chromophores with tunable absorption wavelengths and for preparing useful biohybrids of natural photosynthetic light antennas combined with unnatural chromophores attached to the light antenna oligomers. Synthetic oxobacteriochlorins provide simpler synthetic pathway to the equivalent of highly functionalized natural chlorins while being absorption spectra tunable with the addition of various substituents. Biohybrids of natural light harvesting systems potentially increase the amount of light energy captured and transferred to reaction centers of photosynthetic systems. The studies here directly relate to furthering the increasing organic dye photovoltaic light capture, creation of custom chromophores, and increasing photosynthetic energy transfer.

Committee Chair

Dewey Christine . Holten Kirmaier

Committee Members

Dewey Holten, Christine Kirmaier, Stephen Taylor, Jay Ponder,

Comments

Permanent URL: https://doi.org/10.7936/mxj6-t304

Degree

Doctor of Philosophy (PhD)

Author's Department

Chemistry

Author's School

Graduate School of Arts and Sciences

Document Type

Dissertation

Date of Award

Winter 12-15-2018

Language

English (en)

Author's ORCID

http://orcid.org/0000-0003-4043-2847

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