(5) Twelve of the 40 pathways for the xylene self-assembly, 23 of the 26 pathways for the dioxane self-assembly, and 3 of the 6 pathways for the naphthalene self-assembly had two nearly-parallel linkers that channeled the guest into the cavity. These linker channels are consistent with the report that an antechamber formed by two parallel linkers of a hemicarcerand played a role in the gating of hemicarcerands .