Results 11 to 20 of about 119,307 (312)
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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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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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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Developments in the hydrogenation of challenging substrates utilising transition metal complexes [PDF]
, 2014 This thesis describes the developments of new protocols for the hydrogenation of challenging substrates. Three specific substrates were highlighted for study after an initial review of the literature; benzofurans, esters and bulky ketones.
Ian Carpenter, Carpenter, Ian
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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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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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Hydrogenation of unactivated enamines to tertiary amines : rhodium complexes of fluorinated phosphines give marked improvements in catalytic activity [PDF]
, 2015 Date of Acceptance: 16/04/2015In the hydrogenation of sluggish unactivated enamine substrates, Rh complexes of electron-deficient phosphines are demonstrated to be far more reactive catalysts than those derived from triphenylphosphine.
Matthew L. Clarke +6 more
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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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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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