Toward the photo-induced reductive elimination of halogens
Name
64551344-MIT.pdf
Description
Full printable version
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7.09 MB
Format
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Checksum (MD5)
37d42f872cabcf17d2974ecb62e9b0ae
Author(s)
Manke, David
Advisor(s)
Daniel G. Nocera.
Date Issued
2005
Publisher
Massachusetts Institute of Technology
Abstract
Light-driven energy conversion schemes have been proposed as alternative energy to fossil fuels. The target fuel of these schemes is hydrogen. For photocatalytic hydrogen production to be feasible, it must be performed on energy-poor substrates and must possess high quantum efficiency. The controlling aspect of this quantum efficiency is not hydrogen evolution, but rather activation of stable M-X bonds that are generated from the reaction of catalyst with the low energy substrate. This thesis examines the activation of such bonds, by examining high oxidation state transition metal dimers as potential platforms for the reductive elimination of halogen. Early transition metals were explored with bis(alkylamido)phenylborane ligands. These systems did not demonstrate halogen elimination, but an interesting transition metal chemistry was developed for this ligand set. Alternatively, bimetallic gold systems were also studied as potential platforms, and have shown efficient photoreactivity toward M-X bond activation.
Description
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2005.
Vita.
Includes bibliographical references.
Subjects
Chemistry.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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