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Remodelling a Shp: Transmetallation in a Rare-Earth Cluster-Based Metal–Organic Framework

preprint
submitted on 27.04.2021, 22:16 and posted on 28.04.2021, 10:11 by Hudson de Aguiar Bicalho, P. Rafael Donnarumma, Victor Quezada-Novoa, Hatem M. Titi, Ashlee J Howarth

Post-synthetic modification (PSM) 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 transmetallation 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 transmetallated materials were fully characterized and compared to the parent MOF, Y-CU-10, in regards to crystallinity, surface area, and morphology. Additionally, single-crystal X-ray diffraction (SCXRD) measurements were performed to provide further evidence of transmetallation occurring in the nonanuclear cluster nodes of the MOF.

Funding

NSERC Discovery Grant

History

Email Address of Submitting Author

ashlee.howarth@concordia.ca

Institution

Concordia University

Country

Canada

ORCID For Submitting Author

0000-0002-9180-4084

Declaration of Conflict of Interest

No conflict of interest

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