Date of Award
Doctor of Philosophy (PhD)
ABSTRACT OF THE DISSERTATION
Photophysical Characterization and Wavelength Tuning of Natural and Synthetic Oxobacteriochlorins and Biohybrids
Donald L. Hood
Doctor of Philosophy in Chemistry
Washington University in St. Louis, 2018
Dr. Dewey Holten, Chairperson
Herein 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.
Chair and Committee
Dewey Christine . Holten Kirmaier
Dewey Holten, Christine Kirmaier, Stephen Taylor, Jay Ponder,
Hood, Don, "Photophysical Characterization and Wavelength Tuning of Natural and Synthetic Oxobacteriochlorins and Biohybrids" (2018). Arts & Sciences Electronic Theses and Dissertations. 1711.