(Figure ). The splayed lipid types 2 and 3 clearly differ in their trans/gauche peak ratios; cluster 2 lipids have the lowest trans/gauche peak ratio and are thus the most disordered lipid type. Distinct tail ACF rot curves (Equation ) and splay angle distributions confirm the proposed classification (Figures ). All four lipid types (Figure ) were found for both MMG-1 and MMG-6 (Figures ). The populations of tightly packed type 1 lipids are larger for MMG-1, whereas MMG-6 displays a higher number of more disordered type 2 lipid structural motifs (Figure ). Interestingly, the number of type 3 lipids is clearly higher in the interdigitated systems in comparison to the other systems in the case of MMG-1, matching with the shift in the splay angle peak ratios (Figure ). Moreover, the ratios of the type 0 lipids are reversed for the MMG-1 and MMG-6 in the interdigitated systems in comparison to other systems. To improve the understanding of the tail packing and interactions, we analyzed tail-tail RDFs. Unexpectedly, none of the systems displayed a high order of intermolecular tail packing, and no evident difference was found between MMG-1 and MMG-6 in tail interactions (Figure ).