Cubic Octanuclear Ni(II) Clusters in Highly Porous Polypyrazolyl-Based Materials

Over the past two decades, many efforts have been devoted to devise hybrid three-dimensional porous systems, in which metallic nodes are linked by long organic spacers, aiming at the formation of thermally stable and chemically inert materials for gas storage, gas separation, and catalytic purposes. To this goal, polycarboxylates and, later, polyazolates have been largely employed, reaching significant scientific and technological achievements, with some of the best performing materials being marketed by leading chemical companies. In this work we present a new porous MOF based on Cubic Octanuclear Ni(II) Clusters. Structure stability has been checked by temperature resilved XRPD, while structure refinment has been performed combining XRPD and EXAFS.