Fig. 1: Structures of ZIOS.
From: A nature-inspired hydrogen-bonded supramolecular complex for selective copper ion removal from water
a Structures of a trinuclear unit in ZIOS along each crystallographic direction, as obtained from synchrotron X-ray diffraction data; lavender, red, blue, gray, and white spheres represent Zn, O, N, C, and H atoms, respectively. b Different views of the three-dimensional supramolecular structure of one ZIOS unit cell with observed hydrogen-bonding interactions (green/cyan dotted lines); a wireframe model is used for simplicity and clarity. In the solid state, nanochannels created between stacked layers of trimers are separated by ~2.7 Å, close to the typical length of a solid-state hydrogen bond (2–3 Å). Further details of the ZIOS structure are shown in Supplementary Fig. 1 and Supplementary Tables 1–3.
