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Articles by Christian Ehinger
Selective Catalytic Oxidation of Benzyl Alcohol to Benzaldehyde With Alkyl Allyl Carbonates and Pd(II) Allyl‐Amidinate
1 Introduction Amidinate (N,N′-diisopropylacetamidinate = DIA) complexes of Group 9 and 10 metals are notable molecular precursors to prepare supported nanoparticles across host carriers, for example, SiO2 and Al2O3, as well as carbons [1-6]. The first step in this synthetic process is the grafting of the molecular precursor on the surface functionalities of the support, usually surface OH groups.
Alloyed molybdenum enables efficient alcohol hydrodeoxygenation with supported bimetallic catalysts
Alloyed molybdenum enables efficient alcohol hydrodeoxygenation with supported bimetallic catalysts† Bimetallic heterogeneous catalysts combining group 9 metals (Rh, Ir) or group 10 metals (Ni, Pd, Pt) with Mo on a silica-based support have been synthesized via surface organometallic chemistry and assessed in their catalytic activity for the hydrodeoxygenation (HDO) of alcohols with particular emphasis on the structural evolution of the catalysts and the role of Mo. The investigation was...
Reversible Grafting in Surface Organometallic Chemistry with a Late Transition‐Metal Amidinate Precursor
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Reactivity Switch of Platinum with Gallium: From Reverse Water Gas Shift to Methanol Synthesis
The development of efficient catalysts for the hydrogenation of CO2 to methanol using “green” H2 is foreseen to be a key step to close the carbon cycle. In this study, we show that small and narrowly distributed alloyed PtGa nanoparticles supported on silica, prepared via a surface organometallic chemistry (SOMC) approach, display notable activity for the hydrogenation of CO2 to methanol, reaching a 7.2 molCH3OH h–1 molPt–1 methanol formation rate with a 54% intrinsic CH3OH selectivity.
Reactivity Switch of Platinum with Gallium: From Reverse Water Gas Shift to Methanol Synthesis
Download Hi-Res ImageDownload to MS-PowerPointCite This:J. Am. Chem. Soc. 2024, XXXX, XXX Terms & Conditions Most electronic Supporting Information files are available without a subscription to ACS Web Editions. Such files may be downloaded by article for research use (if there is a public use license linked to the relevant article, that license may permit other uses).
The promotional role of Mn in CO2 hydrogenation over Rh-based catalysts from a surface organometallic chemistry approach
The promotional role of Mn in CO2 hydrogenation over Rh-based catalysts from a surface organometallic chemistry approach Wei Zhou, Scott Docherty, Christian Ehinger, Xiaoyu Zhou and Christophe Coperet Abstract Rh-based catalysts modified by transition metals have been intensely studied for CO2 hydrogenation due to their high activity. However, understanding the role of promoters at the molecular-level remains challenging due to the ill-defined structure of heterogeneous catalysts.
Overcoming Selectivity Issues in Reversible Catalysis – A Transfer Hydrocyanation Exhibiting High Kinetic Control
Download Hi-Res ImageDownload to MS-PowerPointCite This:J. Am. Chem. Soc. 2020, XXXX, XXX RETURN TO JUST ACCEPTED MANUSCRIPTSPREVCommunicationNEXT Benjamin N. Bhawal, Julia C Reisenbauer, Christian Ehinger, and Bill Morandi LEARN ABOUT THESE METRICS Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.
Diverse functionalization of strong alkyl C-H bonds by undirected borylation
Research Article Raphael Oeschger*, Bo Su*, Isaac Yu, Christian Ehinger, Erik Romero, Sam He, John Hartwig† Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA. ↵†Corresponding author. Email: jhartwig{at}berkeley.edu ↵* These authors contributed equally to this work. See allHide authors and affiliations Science 15 May 2020: Vol. 368, Issue 6492, pp.
Oxygen Transfer in Electrophilic Epoxidation Probed by 17O NMR: Differentiating Between Oxidants and Role of Spectator Metal Oxo
Peroxide compounds are used both in laboratory and industrial processes for the electrophilic epoxidation of olefins. Using NMR-spectroscopy, we investigate why certain peroxides engage in this type of reaction while others require activation by metal catalysts, e.g. methyltrioxorhenium (MTO). More precisely, an analysis of 17O NMR chemical shift and quadrupolar coupling parameters provides insights into the relative energy of specific frontier molecular orbitals relevant for reactivity.
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