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Title: Spectroscopic Studies of Metal Carbonyl Complexes for Small Molecule Activation
Authors: KEE JUN WEI
Keywords: Organometallic Chemistry, Radical complexes, Hydrogen Generation, Photochemical Reaction, DFT Studies, Manganese Complexes
Issue Date: 15-Jan-2013
Citation: KEE JUN WEI (2013-01-15). Spectroscopic Studies of Metal Carbonyl Complexes for Small Molecule Activation. ScholarBank@NUS Repository.
Abstract: Transition metals have garnered interest due to their ability to coordinate and activate various small molecules. In addition, transition metal photochemistry allows the utilization of energy from the UV-visible region of sunlight for such activation of small molecules. In this study, the photochemical reactions of manganese carbonyl complexes with small molecules, namely water and alcohols, are explored using spectroscopic methods. With cyclopentadienyl manganese tricarbonyl, bond weakening of coordinated alcohols was observed and radical complexes were obtained upon oxidation of the alcohol-bound complexes. On the other hand, the photolysis of cyclopentadienyl manganese tricarbonyl in a biphasic hexane/water mixture yielded stoichiometric amounts of hydrogen and was proposed to have undergo a non-radical pathway instead. Subsequently, dimanganese decacarbonyl was found to react with water in a biphasic hexane/water mixture to yield stoichiometric amounts of manganese pentacarbonyl hydride which reacted under photochemical conditions to yield hydrogen.
Appears in Collections:Ph.D Theses (Open)

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