Search Results - "Bullock, R. Morris"

Beyond fossil fuel-driven nitrogen transformations by Chen, Jingguang G, Crooks, Richard M, Seefeldt, Lance C, Bren, Kara L, Bullock, R Morris, Darensbourg, Marcetta Y, Holland, Patrick L, Hoffman, Brian, Janik, Michael J, Jones, Anne K, Kanatzidis, Mercouri G, King, Paul, Lancaster, Kyle M, Lymar, Sergei V, Pfromm, Peter, Schneider, William F, Schrock, Richard R

“…Nitrogen is fundamental to all of life and many industrial processes. The interchange of nitrogen oxidation states in the industrial production of ammonia,…”
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A Synthetic Nickel Electrocatalyst with a Turnover Frequency Above 100,000 s―1 for H2 Production by HELM, Monte L, STEWART, Michael P, BULLOCK, R. Morris, DUBOIS, M. Rakowski, DUBOIS, Daniel L

“…Reduction of acids to molecular hydrogen as a means of storing energy is catalyzed by platinum, but its low abundance and high cost are problematic. Precisely…”
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Molecular Catalysts with Diphosphine Ligands Containing Pendant Amines by Wiedner, Eric S., Appel, Aaron M., Raugei, Simone, Shaw, Wendy J., Bullock, R. Morris

“…Pendant amines play an invaluable role in chemical reactivity, especially for molecular catalysts based on earth-abundant metals. As inspired by…”
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Electrochemical Detection of Transient Cobalt Hydride Intermediates of Electrocatalytic Hydrogen Production by Wiedner, Eric S, Bullock, R. Morris

“…A large variety of molecular cobalt complexes are used as electrocatalysts for H2 production, but the key cobalt hydride intermediates are frequently difficult…”
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Surface Immobilization of Molecular Electrocatalysts for Energy Conversion by Bullock, R. Morris, Das, Atanu K., Appel, Aaron M.

“…Electrocatalysts are critically important for a secure energy future, as they facilitate the conversion between electrical and chemical energy. Molecular…”
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Molecular Electrocatalysts for the Oxidation of Hydrogen and the Production of Hydrogen - The Role of Pendant Amines as Proton Relays by DuBois, Daniel L., Bullock, R. Morris

“…Electrocatalysts for efficient conversion between electricity and chemical bonds will play a vital role in future systems for storage and delivery of energy…”
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Catalytic Ammonia Oxidation to Dinitrogen by Hydrogen Atom Abstraction by Bhattacharya, Papri, Heiden, Zachariah M., Chambers, Geoffrey M., Johnson, Samantha I., Bullock, R. Morris, Mock, Michael T.

“…Catalysts for the oxidation of NH3 are critical for the utilization of NH3 as a large‐scale energy carrier. Molecular catalysts capable of oxidizing NH3 to N2…”
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The Critical Role of Reductive Steps in the Nickel‐Catalyzed Hydrogenolysis and Hydrolysis of Aryl Ether C−O Bonds by Wang, Meng, Zhao, Yuntao, Mei, Donghai, Bullock, R. Morris, Gutiérrez, Oliver Y., Camaioni, Donald M., Lercher, Johannes A.

“…The hydrogenolysis of the aromatic C−O bond in aryl ethers catalyzed by Ni was studied in decalin and water. Observations of a significant kinetic isotope…”
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Direct Determination of Equilibrium Potentials for Hydrogen Oxidation/Production by Open Circuit Potential Measurements in Acetonitrile by Roberts, John A. S, Bullock, R. Morris

“…Open circuit potentials were measured for acetonitrile solutions of a variety of acids and their conjugate bases under 1 atm H2. Acids examined were…”
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Diversion of Catalytic C–N Bond Formation to Catalytic Oxidation of NH3 through Modification of the Hydrogen Atom Abstractor by Dunn, Peter L, Johnson, Samantha I, Kaminsky, Werner, Bullock, R. Morris

“…We report that (TMP)Ru­(NH3)2 (TMP = tetramesitylporphryin) is a molecular catalyst for oxidation of ammonia to dinitrogen. An aryloxy radical,…”
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Oxidation of Ammonia Catalyzed by a Molecular Iron Complex: Translating Chemical Catalysis to Mediated Electrocatalysis by Liu, Liang, Johnson, Samantha I., Appel, Aaron M., Bullock, R. Morris

“…Ammonia is a promising candidate in the quest for sustainable, clean energy. With its capacity to serve as an energy carrier, the oxidation of ammonia opens…”
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Frustration across the periodic table: heterolytic cleavage of dihydrogen by metal complexes by Bullock, R. Morris, Chambers, Geoffrey M.

“…This perspective examines frustrated Lewis pairs (FLPs) in the context of heterolytic cleavage of H2 by transition metal complexes, with an emphasis on…”
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Single‐Crystal to Single‐Crystal Transformations: Stepwise CO2 Insertions into Bridging Hydrides of [(NHC)CuH]2 Complexes by Patrick, Evan A., Bowden, Mark E., Erickson, Jeremy D., Bullock, R. Morris, Tran, Ba L.

“…Mechanistic studies of substrate insertion into dimeric [(NHC)CuH]2 (NHC=N‐heterocyclic carbene) complexes with two bridging hydrides have been shown to…”
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Iron Catalyst for Ketone Hydrogenations under Mild Conditions by Bullock, R. Morris

“…Doing it on the cheap: An iron‐based homogeneous catalyst for ketone hydrogenation was reported, thus avoiding the use of a precious metal. Excellent yields…”
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Heterolytic Cleavage of Hydrogen by an Iron Hydrogenase Model: An Fe-H⋅⋅⋅H-N Dihydrogen Bond Characterized by Neutron Diffraction by Liu, Tianbiao, Wang, Xiaoping, Hoffmann, Christina, DuBois, Daniel L., Bullock, R. Morris

“…Hydrogenase enzymes in nature use hydrogen as a fuel, but the heterolytic cleavage of HH bonds cannot be readily observed in enzymes. Here we show that an…”
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Controlling Reaction Routes in Noble‐Metal‐Catalyzed Conversion of Aryl Ethers by Schmid, Julian, Wang, Meng, Gutiérrez, Oliver Y., Bullock, R. Morris, Camaioni, Donald M., Lercher, Johannes A.

“…Hydrogenolysis and hydrolysis of aryl ethers in the liquid phase are important reactions for accessing functionalized cyclic compounds from renewable…”
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Catalytic Silylation of N2 and Synthesis of NH3 and N2H4 by Net Hydrogen Atom Transfer Reactions Using a Chromium P4 Macrocycle by Kendall, Alexander J, Johnson, Samantha I, Bullock, R. Morris, Mock, Michael T

“…We report the first discrete molecular Cr-based catalysts for the reduction of N2. This study is focused on the reactivity of the Cr-N2 complex,…”
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Accelerating the insertion reactions of (NHC)Cu-H via remote ligand functionalization by Speelman, Amy L, Tran, Ba L, Erickson, Jeremy D, Vasiliu, Monica, Dixon, David A, Bullock, R Morris

“…Most ligand designs for reactions catalyzed by (NHC)Cu-H (NHC = N-heterocyclic carbene ligand) have focused on introducing steric bulk near the Cu center…”
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Reversible Electrocatalytic Production and Oxidation of Hydrogen at Low Overpotentials by a Functional Hydrogenase Mimic by Smith, Stuart E., Yang, Jenny Y., DuBois, Daniel L., Bullock, R. Morris

“…An efficient ligand combination: A new bis(diphosphine) nickel(II) complex (see picture) is described. A ΔG° value of 0.84 kcal mol−1 for hydrogen addition for…”
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Catalytic Ionic Hydrogenations by Bullock, R. Morris

“…Catalytic ionic hydrogenation of ketones occurs by proton transfer to a ketone from a cationic metal dihydride, followed by hydride transfer from a neutral…”
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