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Catalytic Hydrogenolysis of the Pt−OPh Bond of a Molecular Pt(II) Complex using Silica Supported Pd, Rh and Pt Nanoparticles

Luo, Z.; Xie, J.; Kaylor, N.; Dickie, D. A.; Ketcham, H. E.; Davis, R. J.; Gunnoe, T. B. Catalytic Hydrogenolysis of the Pt−OPh Bond of a Molecular Pt(II) Complex using Silica Supported Pd, Rh and Pt Nanoparticles. ChemCatChem 2022, 14, e202200582.
doi: 10.1002/cctc.202200582

Abstract

Silica-supported Pd, Rh and Pt metal nanoparticles catalyze the hydrogenolysis of the Pt−OPh bond of (tbpy)Pt(OPh)Cl to release PhOH. Based on kinetic studies monitored by 1H NMR spectroscopy, the reactivity trend is Pd>Rh>Pt. Kinetic studies with Pd/SiO2 are consistent with a first-order dependence on the catalyst and the molecular Pt(II) complex (tbpy)Pt(OPh)Cl. Using TEM-EDS mapping and ICP-OES measurements of a recovered Pd catalyst, after 1 hour of hydrogenolysis of (tbpy)Pt(OPh)Cl, approximately 10–16 % Pt deposition (relative to Pd mol %) on the Pd/SiO2 surface was quantified.

Last updated on 09/28/2022