Deciphering the guest-free crystal structures and thermal breathing of the flexible metal-organic frameworks ZIF-7 and ZIF-9

Chem. Sci., 2026, Accepted Manuscript DOI: 10.1039/D5SC08614K, Edge Article Athanasios Koutsianos, Erik Svensson Grape, Roman Pallach, Julian Keupp, Rochus Schmid, Andrew Ken Inge, Sebastian Henke Owing to their dynamic phase behaviour and unique gas sorption properties, flexible metal-organic frameworks (MOFs) have emerged as a promising class of materials for applications in gas-related technologies and beyond....