The crystallization behaviour of bulk n-alkane itself is notable due to the existence of the so-called rotator phases, which may be formed prior to the crystalline phase upon cooling . These rotator phases are defined by a rotational freedom along the long axis of the molecules, while the positional long range order is retained along all dimensions. Consequently, the rotator phases are similar to the lipid gel phases that are formed between the liquid-crystalline and crystalline phases in lipid bilayers . The occurence, stability and nature of the rotator phases strongly depends on the length of the n-alkanes, as has been reviewed in detail by a number of authors . n-Alkanes with stable rotator phases crystallize via rotator phase nuclei, before transforming into the low-temperature crystal form . C30 in particular exhibits two stable rotator phases, namely RIII and RIV, which are characterized by different chain tilt directions and triclinic and monoclinic lattices, respectively .