Packing polymorphism, odd–even alternation and thermotropic phase transitions in N-,O-diacylethanolamines with varying N-acyl chains. A combined experimental and computational study

Abstract

Odd–even alternation is observed in the calorimetric properties (Tt, ΔHt and ΔSt) in Nn–O16s, but not in Nn–O15s. This is explained on the basis of differences in terminal methyl group packing.