Relevant bibliographies by topics / Oxygen Atom

Academic literature on the topic 'Oxygen Atom'

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Published: 6 September 2023

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Journal articles on the topic "Oxygen Atom"

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Vesel, Alenka, Miran Mozetic, and Marianne Balat-Pichelin. "Oxygen atom density in microwave oxygen plasma." Vacuum 81, no. 9 (May 2007): 1088–93. http://dx.doi.org/10.1016/j.vacuum.2007.02.003.

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Johnson, B. F. G., and M. V. Twigg. "Catalytic oxygen atom transfer reactions." Transition Metal Chemistry 10, no. 11 (November 1985): 439–40. http://dx.doi.org/10.1007/bf01096756.

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QIAO, LIANG, YI ZENG, CHAOQUN QU, XIAOYING HU, LIJUN SONG, SHUJIE LIU, and YONGMING SUI. "THEORETICAL STUDY OF THE ADSORPTION AND DIFFUSION OF OXYGEN ATOM ON O-TERMINATED ZnO$(000\bar 1)$ SURFACE." Nano 09, no. 01 (January 2014): 1450006. http://dx.doi.org/10.1142/s1793292014500064.

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The adsorption and diffusion of oxygen atom on the O -terminated ZnO [Formula: see text] surface have been systematically investigated based on first-principles density functional theory. The results show that the surface relaxation of the ZnO [Formula: see text] surface is significant. In the view of the maximization of the adsorption energy, the preferred site for the adsorption of oxygen atom is the top- O site above the oxygen atom of the first Zn – O bilayer. There is chemical bond formed between the adsorbed oxygen atom and the oxygen atom on the surface, which will result in the redistribution of the charges. The charges transfer from the ZnO surface to the adsorbed oxygen atom, which will heighten the surface potential of ZnO surface and increase the surface work function. Moreover, the diffusion of the oxygen atom on the ZnO surface has also been investigated, and the potential barriers of the diffusion have been identified to reveal the adsorption stability.
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Sugimura, Natsuhiko, Asami Furuya, Takahiro Yatsu, Yoko Igarashi, Reiko Aoyama, Chisato Izutani, Yorihiro Yamamoto, and Toshimichi Shibue. "Observed adducts on positive mode direct analysis in real time mass spectrometry – Proton/ammonium adduct selectivities of 600-sample in-house chemical library." European Journal of Mass Spectrometry 23, no. 1 (February 2017): 4–10. http://dx.doi.org/10.1177/1469066717693851.

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In this study, direct analysis in real time adduct selectivities of a 558 in-house high-resolution mass spectrometry sample library was evaluated. The protonated molecular ion ([M + H]+) was detected in 462 samples. The ammonium adduct ion ([M + NH4]+) was also detected in 262 samples. [M + H]+ and [M + NH4]+ molecular ions were observed simultaneously in 166 samples. These adduct selectivities were related to the elemental compositions of the sample compounds. [M + NH4]+ selectivity correlated with the number of oxygen atom(s), whereas [M + H]+ selectivity correlated with the number of nitrogen atom(s) in the elemental compositions. For compounds including a nitrogen atom and an oxygen atom [M + H]+ was detected; [M + NH4]+ was detected for compounds including an oxygen atom only. Density functional theory calculations were performed for selected library samples and model compounds. Energy differences were observed between compounds detected as [M + H]+ and [M + NH4]+, and between compounds including a nitrogen atom and an oxygen atom in their elemental compositions. The results suggested that the presence of oxygen atoms stabilizes [M + NH4]+, but not every oxygen atom has enough energy for detection of [M + NH4]+. It was concluded that the nitrogen atom(s) and oxygen atom(s) in the elemental compositions play important roles in the adduct formation in direct analysis in real time mass spectrometry.
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Ezumi, Hiromichi, and Masahiko Kawamura. "Atom-Atom Excitation in Shock Waves in Argon-Oxygen Mixture." Journal of the Physical Society of Japan 56, no. 5 (May 15, 1987): 1731–37. http://dx.doi.org/10.1143/jpsj.56.1731.

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Bhadra, Biswa Nath, Yong Su Baek, Cheol Ho Choi, and Sung Hwa Jhung. "How neutral nitrogen-containing compounds are oxidized in oxidative-denitrogenation of liquid fuel with TiO2@carbon." Physical Chemistry Chemical Physics 23, no. 14 (2021): 8368–74. http://dx.doi.org/10.1039/d1cp00633a.

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In oxidative denitrogenation of neutral nitrogen-containing compounds, it was found that oxygen firstly attacks the nitrogen atom, via electrophilic addition of an active oxygen atom; and oxygen on nitrogen moves to the nearby carbon atom because of the relative stability of the intermediates and products.
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Vrlinic, Tjasa, Caroline Mille, Dominique Debarnot, and Fabienne Poncin-Epaillard. "Oxygen atom density in capacitively coupled RF oxygen plasma." Vacuum 83, no. 5 (January 2009): 792–96. http://dx.doi.org/10.1016/j.vacuum.2008.07.008.

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Lu, Xiaoqing, Shoufu Cao, Xiaofei Wei, Shaoren Li, and Shuxian Wei. "Study on oxygen reduction mechanism of S-doped Fe-NC monatomic catalyst." Applied Chemical Engineering 5, no. 2 (July 13, 2022): 36. http://dx.doi.org/10.24294/ace.v5i2.1639.

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Heteroatom doped Fe-NC catalyst shows excellent performance in oxygen reduction reaction. In this work, density functional theory was used to study the mechanism of S atom doping on the regulation of electronic structure of Fe-NC monatomic catalyst and the promotion of oxygen reduction reaction. The stable configuration of Fe-NC catalyst after sulfur atom doping, the regulation of electronic structure of fen4 active site by S atom, and the mechanism of oxygen adsorption and oxygen reduction reaction were analyzed. The results show that doping a small amount of S atoms around the fen4 active site can improve the stability of the catalyst. The mechanism of S atom doping to improve oxygen reduction performance is as follows: (1) the doping of S atom reduces the band gap of the catalyst, improves the conductivity of the catalyst, and is conducive to the electrocatalytic oxygen reduction reaction; (2) the doping of S atom can improve the ability of the catalyst to adsorb oxygen, which is conducive to oxygen reduction reaction; (3) the introduction of four S atoms into the system can reduce the overpotential of oxygen reduction reaction and improve the catalytic activity of fen4 site for oxygen reduction reaction. This work may provide a new idea for the regulation of heteroatom doping on carbon-based monatomic catalysts.
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Cotton, F. Albert, Lee M. Daniels, Carlos A. Murillo, and Hong-Cai Zhou. "Oxygen in a box: an oxygen atom surrounded by a cube of 8 lithium atoms." Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry 2, no. 11-13 (November 1999): 579–82. http://dx.doi.org/10.1016/s1387-1609(00)88568-0.

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Manthiram, Karthish. "Controlling Electrocatalytic Oxygen-Atom Transfer Reactions." ECS Meeting Abstracts MA2021-02, no. 27 (October 19, 2021): 836. http://dx.doi.org/10.1149/ma2021-0227836mtgabs.

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Dissertations / Theses on the topic "Oxygen Atom"

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Sieker, Anke. "Oxygen atom transfer reactions." Thesis, University of Edinburgh, 1994. http://hdl.handle.net/1842/12933.

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Oxygen atom transfer reactions in a series of early transition metal complexes in both solution and solid state were investigated, with a particular interest in O-atom transfer processes from bonded NOx (x= 1,2,3) ligands to adjacent carbonyl groups. The main objective was the synthesis and characterisation of new mixed CO/NO2- species. In Chapter 1 a general review of oxygen atom transfer reactions involving CO and NOx is given. Chapter 2 presents the results gained from reactions of M2(CO)10, ClM(CO)5 and several other carbonyl halides {M=Mn, Re} with [PPN][NO2]/[PPh4][NO2]. Chemical activation by (CH3)3NO prior to interaction with [PPN][NO2]/PPh4][NO2] has also been investigated. Complexes isolated and characterised by IR spectroscopy and X-ray diffraction include [(OC)3Mn(μ2-NO(O))2(μ2-O(NO))Mn(μ2-NO(O))2(μ2-O(NO))Mn(CO)3](PPN)2, {[CIRe(CO)3(NO2)2]C1[(CH3)3NCH2C1]3} and [Re(CO)3(ONO)3](PPN)2. Compounds such as Mn2(CO)8(PPh3)2, [Mn(CO)4C1(PPh3)] and [trans-Mn(CO)3C1(PPh3)2] substituted in part by tertiary phosphines have been tested towards their reactivity with [PPN][NO2]/[PPh4][NO2]. Reaction pathways are discussed on the basis of detailed IR spectroscopy studies. In Chapter 2.3. reactions of M(CO)6, [M(CO)5C1](Et4) {M= Cr, Mo and W} and [(OC)3Mo(μ2-C1)3Mo(CO)3](NEt4)2 with [PPN][NO2]/[PPh4](NO2] are presented. Mixed CO/NO2 species were prepared for all three metals and structurally characterised in the solid state in form of [M(CO)5(NO2)](PPh4) {M=Cr and W}. Mixed CO/NO complexes of Manganese (2.1.3.) and Chromium (2.3.2.) have been synthesised and their reactions with O2 investigated. Oxidation of the nitrosyl ligands was observed in both cases and possible reaction mechanisms are presented.
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Bray, Mark Richard. "The computational modelling of oxygen atom transfer reactions." Thesis, University of Warwick, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245932.

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Green, David Kluttz. "Oxygen atom transfer reactions of oxo-chromium(IV) porphyrins." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/27297.

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McLeod, G. G. "Atomisation and recombination reactions of oxygen, hydrogen and deuterium." Thesis, University of Strathclyde, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381363.

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Kafentzi, Maria Chrysanthi. "Reactive copper-oxygen species for C-H activation : influence of nuclearity and oxygen atom donor." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM4355/document.

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Les monooxygénases à cuivre sont des systèmes enzymatiques capables de transférer un atome d'oxygène à leur substrat de manière hautement régio et stéréo-spécifique. Les complexes modèles de monooxygénases à cuivre ont fourni de précieuses informations sur la structure et la réactivité des espèces «cuivre-dioxygène» impliquées dans une telle réactivité. Cependant, la découverte récente de deux nouveaux systèmes enzymatiques (LPMO et pMMO) capables d'effectuer l'activation des liaisons C-H très énergétiques a réouvert le débat sur les espèces cuivre--oxygène capables d'une telle réactivité. Dans ce travail, nous avons choisi de préparer des complexes bio-inspirés de Cu(I) et Cu(II) avec un ligand contenant un substrat interne. Ces complexes ont été exposés à différents oxydants ou donneurs d'atome d'oxygène et nous avons étudié la régio- et stéréo-sélectivité de la réaction d'oxydation du substrat interne. De plus, nous avons évalue la capacité de ces systèmes à utiliser l'eau comme donneur d'atome d'oxygène. Pour cela, nous avons l'oxydation ou l'activation de l'eau par voie électrochimique afin de générer des intermédiaires cuivre-oxygène conduisant éventuellement à la production de dioxygène ou à l'oxydation sélective du ligand. Enfin, nous nous sommes intéressés aux propriétés d'espèces hétérobimétalliques à haute valence. Par conséquent, deux nouveaux complexes hétérobimétalliques à haute valence contenant du nickel et du cuivre ont été synthétisés. Nous avons étudié leurs propriétés électroniques et leur réactivité envers des substrats externes et internes (ligands) a été évaluée et comparée à la réactivité de leurs homologues homobimétalliques
Copper-containing monooxygenases are enzymatic systems capable of transferring an oxygen atom to their subtrates in highly regio or stereo-specific modes. Model complexes for copper-containing monooxygenases have provided valuable information on the structure and reactivity of several copper-dioxygen adducts. However, the recent discovery of two new enzymatic systems (LPMO and pMMO) able to perform activation of very strong C-H bonds has re-opened the debate on the catalytically relevant copper-dioxygen species. The use of model systems that mimic an enzyme is a simple approach to obtain a better knowledge of how nature works. For this study, Cu(I) and Cu(II) complexes containing ligand-substrate were prepared. After reaction with different oxidants or O-atom donors, we investigated the regio- and stereo-selectivity of the oxidation of the internal substrate. Based on the relatively well-known chemistry of Cu(I) with dioxygen, we, were also interested in investigating the water as an O-atom donor in C-H bond activation reactions. We have therefore investigated electrochemical water oxidation or activation to generate dioxygen and selective oxygen-insertion into the substrate-bound moiety. Finally, we explored the properties of mixed-metal dioxygen species as compared to their homometalic counter-parts. Indeed heterobimetallic active sites are found in various metalloenzymes such as cytochrome c oxidase. Therefore, two new high-valent Cu-Ni heterobimetallic complexes were synthesized. We investigated their electronic properties using various spectroscopic methods and their reactivity was evaluated towards external and internal substrates (indane)
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Miner, Gilda Ann Newton. "Continuous Electron Stimulated Oxygen Atom Emission from Ag Permeation Membranes." W&M ScholarWorks, 1995. https://scholarworks.wm.edu/etd/1539625976.

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McGuckin, Margaret Rose Mary. "Synthesis and reactions of three-membered heterocyles containing an oxygen atom." Thesis, Queen's University Belfast, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335934.

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Chang, Liu. "Ghost in the shell : Studies on subsurface oxygen in oxide-derived copper nanocube catalysts." Licentiate thesis, Stockholms universitet, Fysikum, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-147215.

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With the passage of time and the advancement of our industrial civilization, environmental concerns have become more and more recognized since the 1990s. Carbon dioxide reduction reactions are capable of converting carbon dioxide into valuable hydrocarbons and reducing the carbon emission from the combustion of fossil fuels. This is a promising direction for sustainable energy resources given that the scarcity of fossil fuels is becoming more threatening to the survival of mankind. In recent years, oxide-derived metal nanostructures have been synthesized and show unique catalytic features. Recently, Sloan et al. synthesized a novel oxide-derived copper nanocube structure, which showed a high selectivity toward ethylene over methane and low overpotentials. In this work, the presence of subsurface oxygen in the catalyst surface is tested with density functional theory (DFT) calculations, as a complement to experimental x-ray photoelectron spectroscopy. Due to limitations on the scale of modeling with DFT, the results indicate a very low stability of subsurface oxygen, which give rise to a question if subsurface oxygen would be stable with a reasonably large cluster model. Self-consistent charge density functional tight binding (SCC-DFTB) is adopted to investigate a nanocube model. In this model, a manually reduced cuprious oxide nanocube is constructed and investigated. Subsurface oxygen atoms close to facets are found to be more stable inside. A higher degree of disorder is proposed to be the cause of this difference in stabilizing subsurface oxygen atoms between the slab and nanocube models. The presence of subsurface oxygen enhances the adsorption of CO on the Cu(100) surface, increasing the likelihood for adsorbed CO molecules to dimerize, which is the rate determining step for ethylene production on Cu(100) under low-overpotential conditions. With subsurface electronegative atoms such as oxygen or fluorine, it is also found that the d-band scaling relation could be broken.
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Alessi, Dario <1990&gt. "Reviewing interactions between uranyl’s oxygen atom, hydrogen, p block elements, and their effects in uranium-oxygen bond length." Master's Degree Thesis, Università Ca' Foscari Venezia, 2020. http://hdl.handle.net/10579/18359.

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Thanks to the Cambridge Structural Database, in this thesis work has been selected several uranyl’s ion crystal structures, which share interactions between uranyl’s oxygen and block p elements, or hydrogen. These interactions belong to hydrogen bond, chalcogen and halogen bond or, in a more generic way, short contact interactions. In order to select the structures, the research fields were limited for certain elements to a value within their Van der Waals peak. It was evaluated the influence that these interactions provide to the uranyl’s ion bond length (U=Oyl) from two points of view: a) by considering the type of interacting element and b) by considering the type of donor atom in equatorial position. The data collected were also used to verify the existence of a trend that correlates the interaction length, or nature of equatorial ligands, to the uranyl’s bond length. A comparation between the IR and Raman data, provided by the original works, completes the overview. In conclusion, the main synthetic routes to achieve the structures analysed in this research were highlighted.
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Haley, Craig Stuart. "A feasibility study of the Microsatellite Experiment for Sounding Oxygen atom densities (MESO)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0024/MQ39198.pdf.

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Books on the topic "Oxygen Atom"

1

Caledonia, George E. Energetic oxygen atom material degradation studies. New York: American Institute of Aeronautics and Astronautics, 1987.

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Caledonia, George E. Fast oxygen atom facility for studies related to low earth orbit activities. Washington, D. C: American Institute of Aeronautics and Astronautics, 1992.

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E, Caledonia G., and Jet Propulsion Laboratory (U.S.), eds. Novel oxygen atom source for material degradation studies: Final report. Pasadena, CA: NASA Resident Office, JPL, 1988.

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E, Caledonia G., and Jet Propulsion Laboratory (U.S.), eds. Novel oxygen atom source for material degradation studies: Final report. Pasadena, CA: NASA Resident Office, JPL, 1988.

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Forch, Brad E. Photochemical ignition studies. II Oxygen-atom two-photon resonance effects. Aberdeen Proving Ground, Md: U.S. Army Ballistic Research Laboratory, 1986.

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Krauss, Lawrence Maxwell. Atom: A single oxygen atom's odyssey from the big bang to life on earth-- and beyond. Boston: Back Bay Books/Little Brown & Company, 2002.

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Center, NASA Glenn Research, ed. Launch vehicle performance for bipropellant propulsion using atomic propellants with oxygen. [Cleveland, Ohio]: National Aeronautics and Space Administration, Glenn Research Center, 2000.

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M, Finckenor M., and George C. Marshall Space Flight Center., eds. Material selection guidelines to limit atomic oxygen effects on spacecraft surfaces. [Marshall Space Flight Center], Ala: National Aeronautics and Space Administration, Marshall Space Flight Center, 1999.

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M, Finckenor M., and George C. Marshall Space Flight Center., eds. Material selection guidelines to limit atomic oxygen effects on spacecraft surfaces. [Marshall Space Flight Center], Ala: National Aeronautics and Space Administration, Marshall Space Flight Center, 1999.

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Dongchuan, Wu, Old Dominion University. Research Foundation., and Langley Research Center, eds. Hyperthermal atomic oxygen generator. Norfolk, Va: Old Dominion University Research Foundation, 1990.

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Book chapters on the topic "Oxygen Atom"

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Abu-Omar, Mahdi M. "Oxygen Atom Transfer." In Physical Inorganic Chemistry, 75–108. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9780470602577.ch3.

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Winkelmann, J. "Diffusion of oxygen atom (1); oxygen (2)." In Gases in Gases, Liquids and their Mixtures, 495. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_252.

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Winkelmann, J. "Diffusion of oxygen atom (1); oxygen (2)." In Gases in Gases, Liquids and their Mixtures, 1560. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_1180.

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Lin, M. C. "Dynamics of Oxygen Atom Reactions." In Advances in Chemical Physics, 113–67. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470142615.ch3.

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McKee, R. L. "Systems of Three Oxygen Atoms and One Nitrogen Atom." In Chemistry of Heterocyclic Compounds: A Series Of Monographs, 445. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470186787.ch17.

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McKee, R. L. "Systems of One Oxygen Atoms and Three Nitrogen Atom." In Chemistry of Heterocyclic Compounds: A Series Of Monographs, 459–60. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470186787.ch19.

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McKee, R. L. "Systems of Two Oxygen Atoms and Two Nitrogen Atom." In Chemistry of Heterocyclic Compounds: A Series Of Monographs, 461–62. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470186787.ch20.

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Jaimes, Maria Camila Blanco, and A. Stephen K. Hashmi. "Gold-Catalyzed Oxygen-Atom Transfer to Alkynes." In Modern Gold Catalyzed Synthesis, 273–96. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527646869.ch11.

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Winkelmann, J. "Diffusion of oxygen atom (1); argon (2)." In Gases in Gases, Liquids and their Mixtures, 492. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_249.

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Winkelmann, J. "Diffusion of oxygen atom (1); helium (2)." In Gases in Gases, Liquids and their Mixtures, 493. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-49718-9_250.

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Conference papers on the topic "Oxygen Atom"

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CALEDONIA, GEORGE, and ROBERT KRECH. "Energetic oxygen atom material degradation studies." In 25th AIAA Aerospace Sciences Meeting. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-105.

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Havrilla, G. J., and K. J. Choi. "Two-photon laser-induced fluorescence detection of atomic oxygen." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1985. http://dx.doi.org/10.1364/oam.1985.tha6.

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Oxygen atoms have been detected by several techniques including spontaneous Raman scattering, coherent anti-Stokes Raman spectroscopy, intracavity dye laser spectroscopy, multiphoton ionization, and two-photon laser-induced fluorescence. Of these techniques, two-photon laser-induced fluorescence has received the most attention. Using this technique, a number of investigators have detected oxygen atoms in a variety of flames and discharges. The primary advantages of laser-induced fluorescence are the high spatial resolution and high sensitivity that can be attained. This is particularly important for combustion and plasma diagnostics where low atom concentration profiles could provide information concerning fundamental processes.
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Oakes, David B., Mark E. Fraser, Mitzi Gauthier-Beals, Karl W. Holtzclaw, Mark Malonson, and Alan H. Gelb. "Optical emissions from oxygen atom reactions with adsorbates." In San Diego '92, edited by A. Peter M. Glassford. SPIE, 1992. http://dx.doi.org/10.1117/12.140726.

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Benavides, G. F., A. D. Palla, J. W. Zimmerman, B. S. Woodard, D. L. Carroll, and W. C. Solomon. "Oxygen atom density and thermal energy control in an electric-oxygen iodine laser." In SPIE LASE, edited by Steven J. Davis, Michael C. Heaven, and J. Thomas Schriempf. SPIE, 2014. http://dx.doi.org/10.1117/12.2044801.

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Kovalev, V. L., A. A. Kroupnov, M. Ju Pogosbekian, and L. P. Sukhanov. "Simulation of oxygen atom heterogeneous recombination on Al2O3fromab initioapproach." In Progress in Flight Physics. Les Ulis, France: EDP Sciences, 2012. http://dx.doi.org/10.1051/eucass/201203351.

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Xiaochuan, Zeng, Li Xuejun, He Cuizhu, and Hu Qiaodan. "First-Principles Study on Adsorption Reaction of Oxygen Molecules on Fe (110) Crystal Surface." In 2022 29th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/icone29-92890.

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Abstract The adsorption reaction between oxygen (O2) molecule and ferrum (Fe) (110) crystal surface in the oxidation process of Fe surface was studied by using the first-principles method. The differential charge density analysis of the adsorption sites of oxygen molecule on Fe (110) crystal surface, the calculation of adsorption energy at different sites and the analysis of electronic density of states showed that the stable adsorption position of oxygen molecule was parallel to Fe (110) crystal surface, and the oxygen atom tended to adsorb at the triangular gap of Fe atoms. The electronic structure of the adsorption system showed that the 2p electron orbital of oxygen atom plays a major role in the adsorption, and only O-Fe electron interaction exists when oxygen molecule is adsorbed in the parallel orientation, which makes the whole Fe (110) crystal surface lose electrons, increase the system potential and the risk of electrochemical corrosion. The research conclusions can provide theoretical support for the further insight in the oxidation corrosion mechanism of nuclear metal surface.
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Rosenwaks, S., R. Tel-Dan, and J. Bachar. "Excitation of Bi, Bi2 and BiO via multiple collisions with singlet molecular oxygen." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/oam.1986.wb7.

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Chemiexcitation of metastable electronic states of atoms and small molecules has been suggested as a means of achieving efficient, cw laser operation in the visible (and near-IR and UV) wavelength region. The present research is part of an ongoing effort aimed at providing guidelines for obtaining excitation of metastable states via collisions with singlet molecular oxygen. The low excited states of the bismuth atom, belonging to the p3 ground-state configuration, are metastable with transition probabilities ⩽120 s−1. These metastable states can be populated as a result of one to three fruitful collisions of a ground state atom with an O2(1Δ) (E = 7882 cm−1) and/or O2(1∑) (E = 13,121 cm−1) molecules. Some of these collisional energy transfer steps are highly resonant. O2 (1Δ) and (1∑) can similarly populate electronic states of Bi2 and BiO. This paper reports on preliminary studies of reactions of O2(1Δ) and (1∑) with Bi vapor. Mechanisms for production of excited species in Bi/O2 mixtures are inferred from the dependence of the intensity of the emission from these species on the concentration of Bi atoms and Bi2 molecules.
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Andrienko, Daniil, and Iain D. Boyd. "Vibrational Relaxation and Dissociation of Oxygen in Molecule-Atom Collisions." In 45th AIAA Thermophysics Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2015. http://dx.doi.org/10.2514/6.2015-3251.

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Shimizu, Yasuo, Yuan Tu, Ayman Abdelghafar, Maasa Yano, Yudai Suzuki, Takashi Tanii, Takahiro Shinada, et al. "Atom probe study of erbium and oxygen co-implanted silicon." In 2017 Silicon Nanoelectronics Workshop (SNW). IEEE, 2017. http://dx.doi.org/10.23919/snw.2017.8242316.

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Bystrov, N. S., A. V. Emelianov, A. V. Eremin, and P. I. Yatsenko. "EXPERIMENTAL STUDY OF REACTION OF ETHANOL WITH OXYGEN BEHIND SHOCK WAVES USING ATOMIC RESONANCE ABSORPTION SPECTROSCOPY METHOD." In 8TH INTERNATIONAL SYMPOSIUM ON NONEQUILIBRIUM PROCESSES, PLASMA, COMBUSTION, AND ATMOSPHERIC PHENOMENA. TORUS PRESS, 2020. http://dx.doi.org/10.30826/nepcap2018-2-35.

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The kinetics of reaction of C2H5OH with N2O behind shock waves is studied. The quantitative measurements of the time profiles of concentration of O atoms were carried out by the method of atomic resonance absorption spectroscopy (ARAS) using resonance vacuum-ultraviolet line of O-atom at 130.5 nm. For the calibration of absorption intensity of oxygen atoms depending on its concentration, the special series of experiments in the mixture containing different amounts of N2O in Ar was carried out at T = 2100 ± 50 K when molecule of N2O is completely dissociated. An experimental study of the appearance and consumption of oxygen atoms during the reaction of ethanol with oxygen in mixture 10 ppm N2O + (10 ... 0.1) ppm C2H5OH + Ar at temperatures of 16002300 K and pressures of 200-300 kPa have been carried out. A kinetic analysis of obtained data was performed using the Chemkin package.
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Reports on the topic "Oxygen Atom"

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Braunstein, M., J. Duff, R. Shroll, L. Bernstein, and S. Adler-Golden. Theoretical Studies of High Energy Oxygen Atom Chemistry. Fort Belvoir, VA: Defense Technical Information Center, April 2004. http://dx.doi.org/10.21236/ada422935.

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Shan, Xiaopeng. Mechanistic Study of Oxygen Atom Transfer Catalyzed by Rhenium Compounds. Office of Scientific and Technical Information (OSTI), January 2003. http://dx.doi.org/10.2172/816442.

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Schmoltner, A. Molecular beam studies of oxygen atom reactions with unsaturated hydrocarbons. Office of Scientific and Technical Information (OSTI), October 1989. http://dx.doi.org/10.2172/5372192.

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Gonzalez, Rene I., Shawn H. Phillips, and Gar B. Hoflund. In-Situ Oxygen-Atom Erosion Study of a Polyhedral Oligomeric Silsesquioxane (POSS)-Siloxane Copolymer Using a Novel Hyperthermal Oxygen Atom Source and Analysis by X-Ray Photoelectron Spectroscopy. Fort Belvoir, VA: Defense Technical Information Center, September 1999. http://dx.doi.org/10.21236/ada409463.

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Forch, Brad E., Andrzej W. Miziolek, and Paul J. Dagdigian. Collisional Transfer between and Quenching of the 3P 3p and 5p States of the Oxygen Atom. Fort Belvoir, VA: Defense Technical Information Center, May 1989. http://dx.doi.org/10.21236/ada207759.

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Patil, Bhimanagouda S., Ron Porat, G. K. Jayaprakasha, and K. N. C. Murthy. Optimization of Postharvest Storage Conditions to Maintain Fruit Quality and Health Maintaining Properties of Grapefruit. United States Department of Agriculture, January 2010. http://dx.doi.org/10.32747/2010.7613879.bard.

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Antioxidant activity of fruits is gaining wide interest among consumers due to its importance in counteracting oxidative stress, free radicals and preventing DNA damage. Oxygen radical absorbance capacity (ORAC) assay is one of the commonly used assays to measure the antioxidant activity, which is based on hydrogen atom transfer mechanism. Furocoumarins present in grapefruit are reported to have antiproliferative activity, induce GST activity, inhibit biofilm formation and increase bioavailability of drugs. In the present project ORAC values were measured of Star Ruby grapefruit undergone ethylene degreening treatment, cold storage and temperature conditioning treatment, and modified atmosphere packaging which were stored at different temperatures for prolonged period. In addition, furocoumarins were quantified in Star Ruby grapefruits from cold storage and conditioning experiment conducted in Israel. Conditioning treatment is practiced prior cold storage to reduce chilling injury in grapefruits during cold storage for prolonged period. Levels of 6,7-dihyrdoxy bergamottin decreased during storage period in all three treatments.
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Minton, Timothy K. Interactions of Hyperthermal Oxygen Atoms with Polymer Surfaces. Fort Belvoir, VA: Defense Technical Information Center, August 2000. http://dx.doi.org/10.21236/ada380831.

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Shykoff, B. Pulmonary Effects of Eight Hours Underwater Breathing 1.35 ATM Oxygen: 100% Oxygen or 16% Nitrogen, 84% Oxygen. Fort Belvoir, VA: Defense Technical Information Center, October 2005. http://dx.doi.org/10.21236/ada442924.

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Shykoff, B. Repeated Six-Hour Dives 1.35 ATM Oxygen Partial Pressure. Fort Belvoir, VA: Defense Technical Information Center, October 2005. http://dx.doi.org/10.21236/ada442695.

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Nelson, Nathan, and Charles F. Yocum. Structure, Function and Utilization of Plant Photosynthetic Reaction Centers. United States Department of Agriculture, September 2012. http://dx.doi.org/10.32747/2012.7699846.bard.

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Light capturing and energy conversion by PSI is one of the most fundamental processes in nature. In the heart of these adaptations stand PSI, PSII and their light harvesting antenna complexes. The main goal of this grant proposal was to obtain by X-ray crystallography information on the structure of plant photosystem I (PSI) and photosystem II (PSII) supercomplexes. We achieved several milestones along this line but as yet, like several strong laboratories around the world, we have no crystal structure of plant PSII. We have redesigned the purification and crystallization procedures and recently solved the crystal structure of the PSI supercomplex at 3.3 Å resolution. Even though this advance in resolution appears to be relatively small, we obtained a significantly improved model of the supercomplex. The work was published in J. Biol. Chem. (Amunts et al., 2010). The improved electron density map yielded identification and tracing of the PsaK subunit. The location of an additional 10 ß-carotenes, as well as 5 chlorophylls and several loop regions that were previously uninterruptable have been modeled. This represents the most complete plant PSI structure obtained thus far, revealing the locations of and interactions among 17 protein subunits and 193 non-covalently bound photochemical cofactors. We have continued extensive experimental efforts to improve the structure of plant PSI and to obtain PSII preparation amenable to crystallization. Most of our efforts were devoted to obtain well-defined subcomplexes of plant PSII preparations that are amenable to crystallization. We studied the apparent paradox of the high sensitivity of oxygen evolution of isolated thylakoids while BBY particles exhibit remarkable resilience to the same treatment. The integrity of the photosystem II (PSII) extrinsic protein complement as well as calcium effects arise from the Ca2+ atom associated with the site of photosynthetic water oxidation were investigated. This work provides deeper insights into the interaction of PsbO with PSII. Sight-directed mutagenesis indicated the location of critical sites involved in the stability of the water oxidation reaction. When combined with previous results, the data lead to a more detailed model for PsbO binding in eukaryotic PSII.
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