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Showing 1 to 20 of 84 for “"molecular Hydrogen"”.
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The preventive and therapeutic effects of molecular Hydrogen
Hydrogen gas, which was previously considered to be physiologically inert in mammalian cells, is now considered as a novel selective antioxidant with potentially therapeutic applications and minor adverse effects. Its selectivity presents through its mild effect that is enough neither to disturb …
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Spectroscopy of even-parity states of molecular hydrogen
The dynamic behavior of the even parity states of molecular hydrogen is examined by Resonance Ionization Spectroscopy-Time Of Flight (RIS-TOF} spectroscopy. This is the first time that the autoionization and predissociation yields of individual s and d Rydberg states are detected separately. This …
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Scattering of Molecular Hydrogen and Its Isotopes From Crystal Surfaces
Made available in DSpace on 2014-12-12T01:04:12Z (GMT). No. of bitstreams: 1 7514162.pdf: 7186294 bytes, checksum: 18d7f1e68053d54191eb451643fe4ea2 (MD5) Previous issue date: 1975
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High energy scattering of helium by the molecular hydrogen isotopes
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 1967
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A study of atomic and molecular hydrogen emission from a magnetically confined plasma
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1989.
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Theoretical study of the reactions of oxygen(P-3) + molecular hydrogen and oxygen(P-3) + hydrogen deuteride.
… study of the reactions of oxygen(P-3) + molecular hydrogen and oxygen(P-3) + hydrogen deuteride.
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Interference effects due to projective-target nucleus scattering in single ionization of molecular hydrogen by 75 keV proton impact
… cross-sections for the single ionization of molecular hydrogen by 75 keV proton impact have been measured as a function of the projectile scattering angle and energy loss and compared to available theoretical models. Interference structures are directly observed in the scattering angular …
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Small-scale structures in planetary nebulae
… were studied in order to investigate small scale molecular structures in planetary nebulae, the survival of which affects the structure and composition of the interstellar medium (ISM) from which the next generation of stars is born. Molecular hydrogen (H[subscript 2]) was used a tracer for …
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Theoretical studies of few-body problems
<p>"Heavy ion collisions with atomic and molecular targets produce many outcomes. The Schrödinger equation is not analytically soluble for more than two mutually interacting particles. As a result, theory must resort to using approximations, the validity of which is determined by comparison with …
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Synthesis and hydrogenation of iridium complexes with bidentate and water-soluble phosphine ligands: developing novel water-soluble catalysts for hydrogenation of unsaturates
The hydrogenation of unsaturated carbon-carbon bonds catalyzed by transition metal hydrido complexes has received considerable attention in the literature. Environmental interests have placed considerable emphasis on switching these processes into aqueous media. The dimeric complex [Ir(COD)Cl]₂ …
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Spatial Relationships Between Potential Bioavailable Organic Carbon and Sediment Grain Size at a Chlorinated Solvent-Contaminated Site
… of fermentable compounds needed to produce molecular hydrogen that functions as the primary electron donor for reductive dechlorination. Therefore, in an anaerobic aquifer, the production of molecular hydrogen from the fermentation of NOC drives the reductive dechlorination process. The …
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Biohydrogen production in Escherichia coli – a synthetic biology approach
In the 21st Century molecular hydrogen (H2) has become an essential industrial commodity. It is widely heralded as an exciting alternative to petroleum-based transportation fuels and also plays indispensable roles in many other important industrial processes, including hydrogenation of fats and …
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Catalytic coatings for vanadium-based hydrogen membranes
… alternative to palladium as a dense metallic hydrogen membrane. However, catalytic surface coatings must be applied to vanadium surfaces to enable the transport of molecular hydrogen. These coatings facilitate dissociation and recombination kinetics of molecular hydrogen and protect vanadium …
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Chemical physics and astrochemistry of H3+ and sub Doppler mid infrared spectroscopy of molecular ions
Molecular ions are known to be key reactive intermediates in interstellar environments, and H3+ in particular is responsible for initiating a network of chemical reactions that ultimately results in the formation of the ~170 molecules detected so far in space. Yet fundamental questions about the …
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Investigating [NiFe]-hydrogenases in γ-Proteobacteria
… microorganisms possess the ability to metabolise molecular hydrogen (H2). The major enzyme family involved in hydrogen metabolism are Hydrogenases. These enzymes catalyse the reversible conversion of molecular hydrogen to protons and electrons (H2 ↔ 2H+ + 2e-). These enzymes have the potential to …
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Hydrogen entry in Zircaloy-4 fuel cladding : an electrochemical study
Corrosion and hydrogen pickup of zirconium alloy fuel cladding in water cooled nuclear reactors are life-limiting phenomena for fuel. This thesis studies the fate of hydrogen liberated by waterside corrosion of Zircaloy-4 fuel cladding in Pressurized Water Reactors (PWRs): are the adsorbed protons …
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Synthesis and reactivity of early transition metal "Frustrated Lewis Pairs"
… cations, sterically hindered phosphines with molecular hydrogen and ethylene affords a unique route to early metal hydride species and olefin inserted products. Observed products were generated ' in-situ' and characterized fully by multinuclear 1-D and 2-D NMR spectroscopy.
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