Halogen Bonding versus Hydrogen Bonding in Driving Self-Assembly Processes Perfluorocarbon-hydrocarbon self-assembly, part IX. This work was supported by MURST (Cofinanziamento '99) and EU (COST-D12-0012). We thank Dr. A. Lunghi and Dr. P. Cardillo (Stazione Sperimentale Combustibili, S. Donato Milanese, Italy) for ARC experiments. Part VIII: ref. 9.