Carboxylic acid ligand substituent impacts hydrosilylation activity of platinum single atom catalysts on ceria

Maciulis, Nicholas A.; Wasim, Eman; Rezvani, Fereshteh; Pink, Maren; Sterbinsky, George E.; Caulton, Kenneth G.; Tait, Steven L.

doi:10.1039/d2cy01017h

Cited by 2 publications

(1 citation statement)

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“…The structure of the ligand and steric and electronic parameters as well are determining factors of the catalytic activity of transition metal complexes in homogeneous catalysis. − Taking into account these aspects, scientists pay special attention to the design and development of structure–property models. Thus, some new types of phosphine ligands have been elaborated on and tested in various catalytic processes for the last two decades that allowed the creation of a new portfolio of phosphine-based transition metal catalysts .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, X-ray Structure, and Catalytic Activity in the Hydrosilylation Process of Platinum Complexes Bearing Buchwald Ligands

et al. 2023

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The controlled reaction between [Pt2(DVTMS)3], where DVTMS represents 1,3-divinyl-1,1,3,3-tetramethyldisiloxane, and dialkylbiaryl phosphines (Buchwald ligands) 2-(di-tert-butylphosphino)biphenyl (JohnPhos, 1), 2-(dicyclohexylphosphino)biphenyl (CyJohnPhos, 2), 2-di-tert-butylphosphino-2′,4′,6′-triisopropylbiphenyl (tBuXPhos, 3), 2-dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl (XPhos, 4), 2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl (SPhos, 5), 2-dicyclohexylphosphino-2′-(N,N-dimethylamino)biphenyl (DavePhos, 6), and 2-dicyclohexylphosphino-2′,4′,6′-trimethoxybiphenyl (MeOSPhos, 7) generates an efficient platinum catalyst of type [Pt(DVTMS)(L)] (1a–7a), where L represents the Buchwald ligand, applied for hydrosilylation of phenylacetylene by diphenylsilane. The X-ray crystal structure analysis of the obtained Pt catalysts showed the presence of specific Pt-aryl interactions with the phenyl group of the dialkylbiarylphosphine ligand in complex 1a, while the same effect was not observed for the related 2′,4′,6′-triisopropyl substituted aromatic ring in 3a. The evaluation of the steric parameters from X-ray diffraction analysis (XRD) showed the increase of the steric hindrances around the platinum atom improves the selectivity and the yield of the β(E)-product.

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Section: Introductionmentioning

confidence: 99%

Synthesis, X-ray Structure, and Catalytic Activity in the Hydrosilylation Process of Platinum Complexes Bearing Buchwald Ligands

et al. 2023

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Recent progress in single-atom catalysts for thermal and plasma-assisted conversion of methane

Guan,

Song,

et al. 2025

Energy Conversion and Management

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Carboxylic acid ligand substituent impacts hydrosilylation activity of platinum single atom catalysts on ceria

Abstract: Current industrially employed hydrosilylation catalysts rely on homogeneous platinum catalysts which are not recovered after the reaction. To eliminate this issue, our group has been working to optimize recyclability of...

Cited by 2 publications

References 51 publications

Synthesis, X-ray Structure, and Catalytic Activity in the Hydrosilylation Process of Platinum Complexes Bearing Buchwald Ligands

Synthesis, X-ray Structure, and Catalytic Activity in the Hydrosilylation Process of Platinum Complexes Bearing Buchwald Ligands

Recent progress in single-atom catalysts for thermal and plasma-assisted conversion of methane

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