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

Published

February 17, 2016

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

Pub Type

Journals

Download Paper

Local Download

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 25, 2024)