Results 41 to 50 of about 325,202 (292)
Catalytic Ammonia Oxidation to Dinitrogen by Hydrogen Atom Abstraction.
Angewandte Chemie, 2019 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 are rare.
Papri Bhattacharya +5 more
semanticscholar +1 more source
Atomic scissors: a new method of tracking the 5-bromo-2'-deoxyuridine-labeled DNA in situ. [PDF]
PLoS ONE, 2012 A new method of the light microscopy detection of BrdU-labeled DNA in situ is described. It is based on the oxidative attack at the deoxyribose moiety by copper(I) in the presence of oxygen, which leads to the abstraction of hydrogen atom from ...
Anna Ligasová +4 more
doaj +1 more source
Cell Reports Physical Science, 2021 Summary: Iron terminal imido species featuring electron-withdrawing N-substituents represent an important category of reactive metal-ligand-multiple-bond intermediates in iron-catalyzed reactions.
Qing Liu +7 more
doaj
Kinetic Monte Carlo Studies of Hydrogen Abstraction from Graphite [PDF]
J. Chem. Phys. 128, 174707 (2008), 2008 We present Monte Carlo simulations on Eley-Rideal abstraction reactions of atomic hydrogen chemisorbed on graphite. The results are obtained via a hybrid approach where energy barriers derived from density functional theory calculations are used as input to Monte Carlo simulations.
arxiv +1 more source
Journal of the American Chemical Society, 2019 The plant nonheme iron dioxygenase flavonol synthase performs a regioselective desaturation reaction as part of the biosynthesis of the signaling molecule flavonol that triggers the growing of leaves and flowers. These compounds also have health benefits
Sidra Ghafoor +2 more
semanticscholar +1 more source
Accuracy of Calculations Involving $α^3$ Vacuum-Polarization Diagrams: Muonic Hydrogen Lamb Shift and Muon $g-2$ [PDF]
Phys.Rev. D60 (1999) 053008, 1998 The contribution of the $\alpha^3$ single electron-loop vacuum-polarization diagrams to the Lamb shift of the muonic hydrogen has been evaluated recently by two independent methods. One uses the exact parametric representation of the vacuum-polarization function while the other relies on the Pad\'{e} approximation method. High precision of these values
arxiv +1 more source
Frontiers in Physics, 2022 The reactive collision between Be atom and H2 molecule has received great interest both experimentally and theoretically due to its significant role in hydrogen storage, astrophysics, quantum chemistry and other fields, but the corresponding dynamics ...
Zijiang Yang, Maodu Chen
doaj +1 more source
Tunnelling dominates the reactions of hydrogen atoms with unsaturated alcohols and aldehydes in the dense medium [PDF]
, 2018 Hydrogen addition and abstraction reactions play an important role as surface reactions in the buildup of complex organic molecules in the dense interstellar medium. Addition reactions allow unsaturated bonds to be fully hydrogenated, while abstraction reactions recreate radicals that may undergo radical-radical recombination reactions.
arxiv +1 more source
Computational studies for reduced graphene oxide in hydrogen-rich environment [PDF]
J. Phys. Chem. A 116, 1820 (2012), 2011 We employ molecular dynamic simulations to study the reduction process of graphene-oxide (GO) in a chemically active environment enriched with hydrogen. We examine the concentration and pressure of hydrogen gas as a function of temperature in which abstraction of oxygen is possible with minimum damage to C-sp$^2$ bonds hence preserving the integrity of
arxiv +1 more source
Accounts of Chemical Research, 2018 A generally accepted principle of chemical kinetics is that a reaction will be very slow at low temperatures if there is an activation barrier on the potential energy surface to form products.
D. Heard
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