Abstract
A low-temperature (-20 o C) NMR relaxation study of malononitrile dissolved in dichloromethane or dichlorodideuteriomethane was performed. Using a multispin formalism, both intermolecular and intramolecular dipolar relaxation rate constants were determined. Cross-correlation between various intramolecular dipolar interactions yielded a very exacting microdynamical description of malononitrile in the solution state. The plausibility of the relative ratio of intermolecular dipolar relaxation rates in the protonated and deuterated solvents was demonstrated. It is suggested that multispin NMR relaxation may provide a very sensitive probe of liquid-state structures. Further extensions of this work are proposed
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