Superlattice configurations in linear chain hydrocarbon binary mixtures – Case of n-C28H58: n-CxH2x+2 (x = 10, 12, 14, 16)

Powder XRD data of mixtures of title compounds are interpreted in terms of superlattices (SL). It is suggested that SL configurations (orthorhombic–orthorhombic, orthorhombic–monoclinic, monoclinic– monoclinic) are realizable, because of discrete orientational changes in the alignment of molecules of n-C28H58 hydrocarbon, through an angle mq, where m = 1, 2, 3 … and angle q has an average value of 3.3. Supporting literature evidence on the inclinations are discussed.