Fig. 4: Topological classification and crystal structures of ZIFs and LZIFs discovered by AIRES from new linkers.
From: Algorithmic iterative reticular synthesis of zeolitic imidazolate framework crystals

a, Crystal structures of ZIFs (ZIF-A1 to ZIF-A11) are shown and classified based on network topologies. ZIF topologies are visualized using natural tiling models and labelled with their respective three-letter topological codes, where uppercase and lowercase respectively indicate topologies known in zeolites and only in ZIFs, respectively. Disordered positions of functional groups in crystal structure are preserved in visualization. b, Crystal structures of LZIFs (LZIF-A1 to LZIF-A4) are shown and classified based on network topologies. LZIF topologies are visualized using two-dimensional tiling models.