Aperture-Opening Encapsulation of a Transition Metal Catalyst in a Metal–Organic Framework for CO2 Hydrogenation

The aperture-opening process resulting from dissociative linker exchange in zirconium-based metal–organic framework (MOF) UiO-66 was used to encapsulate the ruthenium complex (tBuPNP)­Ru­(CO)­HCl in the framework (tBuPNP = 2,6-bis­((di-tert-butyl-phosphino)­methyl)­pyridine). The resulting encapsula...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2018-07, Vol.140 (26), p.8082-8085
Main Authors: Li, Zhehui, Rayder, Thomas M, Luo, Lianshun, Byers, Jeffery A, Tsung, Chia-Kuang
Format: Article
Language:English
Online Access:Get full text
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Summary:The aperture-opening process resulting from dissociative linker exchange in zirconium-based metal–organic framework (MOF) UiO-66 was used to encapsulate the ruthenium complex (tBuPNP)­Ru­(CO)­HCl in the framework (tBuPNP = 2,6-bis­((di-tert-butyl-phosphino)­methyl)­pyridine). The resulting encapsulated complex, [Ru]@UiO-66, was a very active catalyst for the hydrogenation of CO2 to formate. Unlike the analogous homogeneous catalyst, [Ru]@UiO-66 could be recycled five times, showed no evidence for bimolecular catalyst decomposition, and was less prone to catalyst poisoning. These results demonstrated for the first time how the aperture-opening process in MOFs can be used to synthesize host–guest materials useful for chemical catalysis.
ISSN:0002-7863
1520-5126
DOI:10.1021/jacs.8b04047