Remodelling a shp: Transmetalation in a Rare-Earth Cluster-Based Metal–Organic Framework

• Published in: Inorganic chemistry Vol. 60; no. 16; pp. 11795 - 11802
• Main Authors: Bicalho, Hudson A, Donnarumma, P. Rafael, Quezada-Novoa, Victor, Titi, Hatem M, Howarth, Ashlee J
• Format: Journal Article
• Language: English
• Published: American Chemical Society 16.08.2021
• ISSN: 0020-1669; 1520-510X
• DOI: 10.1021/acs.inorgchem.1c01317

Postsynthetic modification of metal–organic frameworks (MOFs) is an important strategy for accessing MOF analogues that cannot be easily synthesized de novo. In this work, the rare-earth (RE) cluster-based MOF Y-CU-10 with shp topology was modified through transmetalation using a series of RE ions, including La­(III), Nd­(III), Eu­(III), Tb­(III), Er­(III), Tm­(III), and Yb­(III). In all cases, metal exchange higher than 70% was observed, with reproducible results. All transmetalated materials were fully characterized and compared to the parent MOF Y-CU-10 with regard to crystallinity, surface area, and morphology. Additionally, single-crystal X-ray diffraction measurements were performed to provide further evidence of transmetalation occurring in the nonanuclear cluster nodes of the MOF.