Search Results - "HASHIGUCHI, G"

Designing Catalysts for Functionalization of Unactivated C–H Bonds Based on the CH Activation Reaction by Hashiguchi, Brian G, Bischof, Steven M, Konnick, Michael M, Periana, Roy A

“…In an effort to augment or displace petroleum as a source of liquid fuels and chemicals, researchers are seeking lower cost technologies that convert natural…”
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Main-Group Compounds Selectively Oxidize Mixtures of Methane, Ethane, and Propane to Alcohol Esters by Hashiguchi, Brian G., Konnick, Michael M., Bischof, Steven M., Gustafson, Samantha J., Devarajan, Deepa, Gunsalus, Niles, Ess, Daniel H., Periana, Roy A.

“…Much of the recent research on homogeneous alkane oxidation has focused on the use of transition metal catalysts. Here, we report that the electrophilic…”
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Using Reduced Catalysts for Oxidation Reactions: Mechanistic Studies of the “Periana-Catalytica” System for CH4 Oxidation by Mironov, Oleg A, Bischof, Steven M, Konnick, Michael M, Hashiguchi, Brian G, Ziatdinov, Vadim R, Goddard, William A, Ahlquist, Mårten, Periana, Roy A

“…Designing oxidation catalysts based on CH activation with reduced, low oxidation state species is a seeming dilemma given the proclivity for catalyst…”
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Selective CH Functionalization of Methane, Ethane, and Propane by a Perfluoroarene Iodine(III) Complex by Konnick, Michael M., Hashiguchi, Brian G., Devarajan, Deepa, Boaz, Nicholas C., Gunnoe, T. Brent, Groves, John T., Gunsalus, Niles, Ess, Daniel H., Periana, Roy A.

“…Direct partial oxidation of methane, ethane, and propane to their respective trifluoroacetate esters is achieved by a homogeneous hypervalent iodine(III)…”
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Charging mechanism of electret film made of potassium-ion-doped SiO2 by Hashiguchi, G., Nakasone, D., Sugiyama, T., Ataka, M., Toshiyoshi, H.

“…A charging model is proposed for an electret film made of potassium-ion-doped SiO2 that can be formed between the two opposing micro-electrodes of a…”
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Acceleration of Nucleophilic CH Activation by Strongly Basic Solvents by Hashiguchi, Brian G, Young, Kenneth J. H, Yousufuddin, Muhammed, Goddard, William A, Periana, Roy A

“…(IPI)Ru(II)(OH) n (H2O) m , 2, where IPI is the NNN-pincer ligand, 2,6-diimidizoylpyridine, is shown to catalyze H/D exchange between hydrocarbons and strongly…”
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Selective C−H Functionalization of Methane and Ethane by a Molecular SbV Complex by Koppaka, Anjaneyulu, Park, Sae Hume, Hashiguchi, Brian G., Gunsalus, Niles J., King, Clinton R., Konnick, Michael M., Ess, Daniel H., Periana, Roy A.

“…Owing to the strong nonpolar bonds involved, selective C−H functionalization of methane and ethane to esters remains a challenge for molecular homogeneous…”
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The Hydroxide-Promoted Catalytic Hydrodefluorination of Fluorocarbons by Ruthenium in Aqueous Media by Konnick, Michael M., Bischof, Steven M., Periana, Roy A., Hashiguchi, Brian G.

“…A ruthenium complex ligated by the non‐innocent protic ligand 2,6‐imidizoylpyridine (IPI) in aqueous potassium hydroxide media is shown to be a suitable…”
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Homogeneous Functionalization of Methane by Gunsalus, Niles Jensen, Koppaka, Anjaneyulu, Park, Sae Hume, Bischof, Steven M, Hashiguchi, Brian G, Periana, Roy A

“…One of the remaining “grand challenges” in chemistry is the development of a next generation, less expensive, cleaner process that can allow the vast reserves…”
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Silicon Nanotweezers With Subnanometer Resolution for the Micromanipulation of Biomolecules by Yamahata, C., Collard, D., Legrand, B., Takekawa, T., Kumemura, M., Hashiguchi, G., Fujita, H.

“…We describe electrostatically actuated silicon nanotweezers which are intended for the manipulation and characterization of filamentary molecules. The…”
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Selective C−H Functionalization of Methane and Ethane by a Molecular SbV Complex by Koppaka, Anjaneyulu, Park, Sae Hume, Hashiguchi, Brian G., Gunsalus, Niles J., King, Clinton R., Konnick, Michael M., Ess, Daniel H., Periana, Roy A.

“…Owing to the strong nonpolar bonds involved, selective C−H functionalization of methane and ethane to esters remains a challenge for molecular homogeneous…”
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Coulomb blockade oscillations at room temperature in a Si quantum wire metal-oxide-semiconductor field-effect transistor fabricated by anisotropic etching on a silicon-on-insulator substrate by Ishikuro, H., Fujii, T., Saraya, T., Hashiguchi, G., Hiramoto, T., Ikoma, T.

“…We have developed a very controllable fabrication process of an extremely narrow (∼10 nm) quantum wire metal-oxide-semiconductor field-effect transistor…”
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Small crack behavior and fracture of nickel-based superalloy under ultrasonic fatigue by Chen, Q., Kawagoishi, N., Wang, Q.Y., Yan, N., Ono, T., Hashiguchi, G.

“…Fracture and small crack behavior in the very high cycle domain of 10 9 cycles were investigated with a nickel-based superalloy under ultrasonic fatigue in…”
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Selective C-H Functionalization of Methane and Ethane by a Molecular Sb V Complex by Koppaka, Anjaneyulu, Park, Sae Hume, Hashiguchi, Brian G, Gunsalus, Niles J, King, Clinton R, Konnick, Michael M, Ess, Daniel H, Periana, Roy A

“…Owing to the strong nonpolar bonds involved, selective C-H functionalization of methane and ethane to esters remains a challenge for molecular homogeneous…”
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SN2 and E2 Branching of Main-Group-Metal Alkyl Intermediates in Alkane CH Oxidation: Mechanistic Investigation Using Isotopically Labeled Main-Group-Metal Alkyls by Gunsalus, Niles Jensen, Koppaka, Anjaneyulu, Hashiguchi, Brian G, Konnick, Michael M, Park, Sae Hume, Ess, Daniel H, Periana, Roy A

“…The main-group-metal alkyl compounds trialkyltin and dialkylthallium have been utilized to investigate the mechanism of functionalization of monoalkyl thallium…”
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Selective N Functionalization of Methane and Ethane to Aminated Derivatives by Main-Group-Directed C–H Activation by Gunsalus, Niles Jensen, Park, Sae Hume, Hashiguchi, Brian G, Koppaka, Anjaneyulu, Smith, Stacey J, Ess, Daniel H, Periana, Roy A

“…To our knowledge, there is no precedent for the direct conversion of light alkanes to aminated products by CH activation. Previous molecular systems reported…”
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A Mechanistic Change Results in 100 Times Faster CH Functionalization for Ethane versus Methane by a Homogeneous Pt Catalyst by Konnick, Michael M, Bischof, Steven M, Yousufuddin, Muhammed, Hashiguchi, Brian G, Ess, Daniel H, Periana, Roy A

“…The selective, oxidative functionalization of ethane, a significant component of shale gas, to products such as ethylene or ethanol at low temperatures and…”
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Self-hold and precisely controllable optical cross-connect switches using ultrasonic micro motors by Oohira, F., Iwase, M., Matsui, T., Hosogi, M., Ishimaru, I., Hashiguchi, G., Mihara, Y., Iino, A.

“…In this paper, we propose new optical cross-connect switches using ultrasonic micro motors, whose features are self-hold, precise control, and low electric…”
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Cp Iridium Precatalysts for Selective C–H Oxidation with Sodium Periodate As the Terminal Oxidant by Zhou, Meng, Hintermair, Ulrich, Hashiguchi, Brian G, Parent, Alexander R, Hashmi, Sara M, Elimelech, Menachem, Periana, Roy A, Brudvig, Gary W, Crabtree, Robert H

“…Sodium periodate (NaIO4) is shown to be a milder and more efficient terminal oxidant for C–H oxidation with Cp*Ir (Cp* = C5Me5) precatalysts than ceric(IV)…”
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Highly Enantioselective Hydroformylation of Aryl Alkenes with Diazaphospholane Ligands by Watkins, Avery L, Hashiguchi, Brian G, Landis, Clark R

“…Asymmetric, rhodium-catalyzed hydroformylation of terminal and internal aryl alkenes with diazaphospholane ligands is reported. Under partially optimized…”
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