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Improved Catalytic Activity and Stability of Palladium Pincer Complex by Incorporation into a Metal-Organic Framework

Published

Author(s)

Samantha A. Burgess, Abebu Kassie, Sarah A. Baranowski, Keith J. Fritzsching, Klaus Schmidt-Rohr, Craig Brown, Casey R. Wade

Abstract

A porous metal-organic framework Zr6O4(OH)4(L-PdX)3 (1-x) has been constructed from Pd diphosphinite pincer complexes ([L-PdX}4 = [1,3-(OPAr2)2C6H3)PdX]4-, Ar = p-C6H4CO2, X = Cl, I). Reaction of 1-X with Phi(O2CCF3)2 generates 1-TFA, which contains more weakly coordinating CF3CO2 ligands at the Pd sites, and I2 as a soluble byproduct 1-TFA is an active and recyclable catalyst for transfer hydrogenation of benzaldehydes using formic acid as a hydrogen source. In contrast, the homogeneous analougue ^t^Bu[L-PdTFA] decomposes under the reaction conditions, resulting in poor catalytic activity.
Citation
Journal of the American Chemical Society
Volume
138
Issue
6

Keywords

catalyst, diffraction, X-ray, NMR

Citation

Burgess, S. , Kassie, A. , Baranowski, S. , Fritzsching, K. , Schmidt-Rohr, K. , Brown, C. and Wade, C. (2016), Improved Catalytic Activity and Stability of Palladium Pincer Complex by Incorporation into a Metal-Organic Framework, Journal of the American Chemical Society, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=919926 (Accessed April 16, 2024)
Created February 16, 2016, Updated October 12, 2021