Extended Data Fig. 1: Structure analysis of hexagonal modules in RP-H101.
From: Balancing volumetric and gravimetric capacity for hydrogen in supramolecular crystals
a, The crystal superstructure of RP-H101 shows that seven 6.4-nm hexagonal motifs denoted in different colours are interpenetrated with each other. After interpenetration, every 6.4-nm hexagonal motif forms seven smaller hexagonal modules. b, c, The top-view and side-view of how the small hexagonal module is assembled. The small hexagonal module shows a three-layer structure and a pore diameter of 1.8 nm, assembled with nine IATH-2 molecules. d, e, Based on the top view and side view of a small hexagonal module, there are 12 [N−H···O] and 12 [O−H···N] hydrogen bonds between these nine IATH-2 molecules, which direct the interpenetration and the formation of the highly catenated structure.
