Abstract:
Studies of the deuteron and proton relaxation rates of liquid nitromethane were made at various temperatures. The separation of the proton-proton intermolecular relaxation was accomplished by a dilution study in nitromethane-d3. It was found that the spin-rotation interaction contribution is discussed in terms of different models for the spin-internal and spin-overall rotation coupling. The resulting spin-rotation relaxation times offer evidence for large spin-rotation effects due to the internal rotation of the methyl group.
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