Results 11 to 20 of about 97,085 (317)
Ionization of Hydrogen and Hydrogenic Ions by Antiprotons [PDF]
Physical Review Letters, 1996 Presented here is a description of the ionization of hydrogen and hydrogenic ions by antiproton-impact, based on very large scale numerical solutions of the time-dependent Schrödinger equation in three spatial dimensions and on analysis of the topology of the electronic eigenenergy surfaces in the plane of complex internuclear distance.
Schultz, D. R. +3 more
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Journal of Physics: Condensed Matter, 2018 Abstract Hydrogen is the simplest and most abundant element in the Universe. There are two pathways for creating metallic hydrogen under high pressures. Over 80 years ago Wigner and Huntington predicted that if solid molecular hydrogen was sufficiently compressed in the T =
Ranga Dias, Isaac Silvera
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eHydrogenation: Hydrogen‐free Electrochemical Hydrogenation
Angewandte Chemie International Edition, 2023 AbstractHydrogenation reactions are staple transformations commonly used across scientific fields to synthesise pharmaceuticals, natural products, and various functional materials. However, the vast majority of these reactions require the use of a toxic and costly catalyst leading to unpractical, hazardous and often functionally limited conditions ...
Camilla Russo +13 more
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Materials, 2011 The idea of a “Hydrogen Economy” is that carbon containing fuels should be replaced by hydrogen, thus eliminating air pollution and growth of CO2 in the atmosphere. However, storage of a gas, its transport and reconversion to electricity doubles the cost of H2 from the electrolyzer.
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Synthetic and mechanistic investigations of iridium-catalysed imine hydrogenation [PDF]
, 2013 Chiral amines occur as structural elements in many biologically active natural and unnatural products. In addition, they find applications as chiral auxiliaries, catalysts, and resolving agents.
Schramm, York
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Hydrogenation of styrene-isoprene-styrene block copolymer and its product properties
Hecheng xiangjiao gongye, 2021 The hydrogenation of styrene-isoprene-styrene block copolymer(SIS) was catalyzed by nickel-based catalyst, and the mechanism of catalytic reaction was studied.
LIANG Ai-min
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Ruthenacycles and Iridacycles as Catalysts for Asymmetric Transfer Hydrogenation and Racemisation [PDF]
, 2010 Ruthenacycles, which are easily prepared in a single step by reaction between enantiopure aromatic amines and [Ru(arene)Cl2]2 in the presence of NaOH and KPF6, are very good asymmetric transfer hydrogenation catalysts.
Ben L. Feringa +53 more
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Hydrogen microstructure in hydrogenated amorphous silicon [PDF]
Physical Review B, 1996 We present a method to determine the local hydrogen bonding structure in hydrogenated amorphous silicon from infrared spectroscopy measurements. This approach is based on a different oscillator strength and refractive index for hydrogen atoms located in the isolated and clustered phase.
Daey Ouwens, J., Schropp, R.E.I.
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Iridium-Catalyzed asymmetric hydrogenation : A: Studies on the synthesis of pyrazine-based P,N Ligands, B: Diastereoselective hydrogenation of chiral cyclohexenes [PDF]
, 2016 The synthesis of a new ligand class of pyrazine based ligands and their attempted complexation with iridium to form dimeric complexes is presented. Furthermore, the synthesis of chiral cyclohexenes by enantioselective Diels-Alder reactions is shown ...
Scheil, Robin
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Chinese Journal of Magnetic Resonance, 2021 The reaction of heterogeneous benzene hydrogenation reaction in a real solid-liquid-gas environment was studied by operando nuclear magnetic resonance (NMR) spectroscopy.
Song SUI +4 more
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