University of Illinois Urbana-Champaign

Supramolecular Porphyrin Assemblies: Photosynthetic Reaction Center Analogs and Porphyrin Networks

Paterno, Alicia Ann

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Description

Title
Supramolecular Porphyrin Assemblies: Photosynthetic Reaction Center Analogs and Porphyrin Networks
Author(s)
Paterno, Alicia Ann
Issue Date
2001
Doctoral Committee Chair(s)
  • Girolami, Gregory S.
  • Kenneth S. Suslick
Department of Study
Chemistry
Discipline
Chemistry
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Chemistry, Organic
Language
eng
Abstract
Photophysical measurements were carried out in collaboration with Professor Dewey Holten and Robin Lammi at Washington University. The lifetimes for the initial photoexcited states of the triad, protected triad, and Zr(TTP)(TTP-NH 2) in a given solvent are the same within experimental error. This result means that an electron is not transferring to the monomeric spacer porphyrin in high yield. Presumably, the DeltaG for this process is too unfavorable. Instead, the excited zirconium bis(porphyrin) sandwich complex simply returns to the ground state. One way to improve upon this system would be to make the bridging porphyrin a better electron acceptor by replacing the mesityl substituents with pentafluorophenyl groups.
Graduation Semester
2001
Type of Resource
text
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http://hdl.handle.net/2142/84049

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