Journal ArticleDOI
Platinum Catalysts for the High-Yield Oxidation of Methane to a Methanol Derivative
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TLDR
Mechanistic studies show that platinum(II) is the most active oxidation state of platinum for reaction with methane, and are consistent with reaction proceeding through carbon-hydrogen bond activation of methane to generate a platinum-methyl intermediate that is oxidized to generate the methyl ester product.Abstract:
Platinum catalysts are reported for the direct, low-temperature, oxidative conversion of methane to a methanol derivative at greater than 70 percent one-pass yield based on methane. The catalysts are platinum complexes derived from the bidiazine ligand family that are stable, active, and selective for the oxidation of a carbon-hydrogen bond of methane to produce methyl esters. Mechanistic studies show that platinum(II) is the most active oxidation state of platinum for reaction with methane, and are consistent with reaction proceeding through carbon-hydrogen bond activation of methane to generate a platinum-methyl intermediate that is oxidized to generate the methyl ester product.read more
Citations
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About Supramolecular Assemblies of π-Conjugated Systems
Journal ArticleDOI
Metal Catalysts for Heterogeneous Catalysis: From Single Atoms to Nanoclusters and Nanoparticles.
Lichen Liu,Avelino Corma +1 more
TL;DR: This Review will compare the results obtained from different systems and try to give a picture on how different types of metal species work in different reactions and give perspectives on the future directions toward better understanding of the catalytic behavior of different metal entities in a unifying manner.
Journal ArticleDOI
Understanding and exploiting C–H bond activation
Jay A. Labinger,John E. Bercaw +1 more
TL;DR: The recent development of promising catalytic systems highlights the potential of organometallic chemistry for useful C-H bond activation strategies that will ultimately allow us to exploit Earth's alkane resources more efficiently and cleanly as discussed by the authors.
Journal ArticleDOI
Highly Regioselective Arylation of sp3 C−H Bonds Catalyzed by Palladium Acetate
TL;DR: A new palladium-catalyzed arylation process based on C-H activation has been developed with utilization of pyridine-containing directing groups that allows the beta-arylation of carboxylic acid derivatives and gamma-ARYlation of amine derivatives.
Journal ArticleDOI
Catalysis Research of Relevance to Carbon Management: Progress, Challenges, and Opportunities
Hironori Arakawa,Michele Aresta,John Nelson Armor,Mark A. Barteau,Eric J. Beckman,Alexis T. Bell,John E. Bercaw,Carol Creutz,Eckhard Dinjus,David A. Dixon,Kazunari Domen,Daniel L. DuBois,Juergen Eckert,Etsuko Fujita,Dorothy H. Gibson,William A. Goddard,D. Wayne Goodman,Jay O. Keller,Gregory J. Kubas,Harold H. Kung,James E. Lyons,Leo Ernest Manzer,Tobin J. Marks,Keiji Morokuma,Kenneth M. Nicholas,Roy A. Periana,Lawrence Que,Jens Rostrup-Nielson,Wolfgang M.H. Sachtler,Lanny D. Schmidt,Ayusman Sen,Gabor A. Somorjai,Peter C. Stair,B. Ray Stults,William Tumas +34 more
TL;DR: The goal of the "Opportunities for Catalysis Research in Carbon Management" workshop was to review within the context of greenhouse gas/carbon issues the current state of knowledge, barriers to further scientific and technological progress, and basic scientific research needs in the areas of H2 generation and utilization.
References
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Journal ArticleDOI
A Mercury-Catalyzed, High-Yield System for the Oxidation of Methane to Methanol
Roy A. Periana,Douglas J. Taube,Eric R. Evitt,Daniel G. Löffler,Paul R. Wentrcek,George Voss,Toshihiko Masuda +6 more
TL;DR: A homogeneous system for the selective, catalytic oxidation of methane to methanol via methyl bisulfate is reported and the essential elements of the mechanism were identified.
Journal ArticleDOI
The Mechanism of a C-H Bond Activation Reaction in Room-Temperature Alkane Solution
Steven Bromberg,Steven Bromberg,Haw Yang,Haw Yang,Matthew C. Asplund,Matthew C. Asplund,Tianquan Lian,Tianquan Lian,B. K. McNamara,B. K. McNamara,K. T. Kotz,K. T. Kotz,J. S. Yeston,J. S. Yeston,M. J. Wilkens,M. J. Wilkens,Heinz Frei,Heinz Frei,Robert G. Bergman,Robert G. Bergman,Charles B. Harris,Charles B. Harris +21 more
TL;DR: In this article, the initial femtosecond dynamics through the nano-and microsecond kinetics to the final stable products have been used to generate a detailed picture of the C-H activation reaction.
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C−H Activation at Cationic Platinum(II) Centers
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SiH and CH Activation by Transition Metal Complexes: A Step Towards Isolable Alkane Complexes?†
TL;DR: In this paper, it was shown that only when the CH bond is part of a ligand that is already directly bonded to the transition metal center will the resulting chelate effect stabilize this agostic C-H-M interaction, which is a further step towards the understanding of the factors which govern σ-complexation of ligands at transition metal centers.