Fig. 13
From: Structural details of carboxylic acid-based Hydrogen-bonded Organic Frameworks (HOFs)
Crystal structures of (a) CPHATN-1, (b) CPBTQ-1, and (c) TQ12-1. (top) Hexagonal networks and assembled structure (middle) viewed down and (bottom) viewed from the side. d Interlayer H-bonds with the truncated tetramer fashion observed in CPBTQ-1. e Interlayer H-bonds with the water-incorporated truncated tetramer observed in TQ12-1. Guest molecules and disordered moieties were omitted for clarity