Using NMR spectroscopy to study molecular motions of alkyl chains

What is it about?

The 13C nuclear relaxation behaviour of n-alkyl chains in a variety of compounds can be described in terms of two relaxation times, one for tumbling (τc) and one for each carbon nucleus for the internal motions (τc). A general model using a position in an octyl chain that appears to have invariant internal motions was derived.

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Why is it important?

The general model of molecular motions in alkyl chains, that of overall and internal motions, was proven for a series of C8 chains. The generality was proven over multiple compounds.