Data for Manuscript =================== Data for manuscript "Observing Transient Breathing States of MIL-53 Homologues Using In Situ Single Crystal 3D Electron Diffraction" Small, 2025, DOI: 10.1002/smll.202509071 Authors: Matthew Liddle, Celine Beck, Russell M. Main, Dominic Bara, Claire Wilson, Donald A. MacLaren, David Boldrin, Ross S. Forgan Experimental data in Origin format, analytical and rigaku raw PXRD data. Funded by EPSRC grants (EP/V042262/1), (EP/W524359/1), (EP/Z533683/1), (EP/X030083/1) ERC grant SCoTMOF (677289) CCDC 2470910 Ð 2470924 contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www.ccdc.cam.ac.uk/data_request/cif. Data available powder X-ray diffraction