XAS data processing, modeling, and fitting were conducted using Athena and Artemis software from the Demeter package. EXAFS fitting of DUT-67 was conducted using the reported crystal structure of DUT-67 (F m -3 m space group and the central metal zirconium ion being 8-coordinated by 8 O-atoms), while the aDUT-67 was fitted using a structural model of m-ZrO 2 (P2 1 /c space group and the central metal zirconium ion being 7-coordinated by 7 O-atoms) downloaded from the materials project (code mp-2858).