Title page for ETD etd-06062008-144900
|Type of Document
||Studies of liquid phase intermolecular interactions utilizing 1H and l3C dynamic nuclear polarization and nuclear magnetic resonance techniques
|Dorn, Harry C.
|Davis, Richey M.
|Dillard, John G.
|Marand, Hervé L.
|Schug, John C.
|Date of Defense
Liquid phase l3C DNP experimental data were collected in a flow transfer system
for different organic molecules, such as acetone, acetaldehyde, diethyl malonate, ethyl
acetoacetate, diphenylmethane, and triphenylmethane. These molecules represent a wide
range of functional groups with different acidities of the respective carbon-hydrogen
bonds. The l3C DNP results demonstrated that the scalar dominated enhancement is
sensitive to the acidity of carbon-hydrogen bonds as well as to the correlation times of the
sample molecules. A hydrogen bonding spin polarization model is used, for the first time,
to interpret the scalar components induced by the nitroxide free radical at the carbon sites
of the acidic carbon-hydrogen bonds.
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