Готові списки джерел за темами / Hydrogen donors

Добірка наукової літератури з теми "Hydrogen donors"

Автор: Grafiati
Опубліковано: 6 вересня 2023

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Статті в журналах з теми "Hydrogen donors"

1

Laven, Johannes G., Reinhard Job, Werner Schustereder, Hans Joachim Schulze, Franz Josef Niedernostheide, Holger Schulze, and Lothar Frey. "Conversion Efficiency of Radiation Damage Profiles into Hydrogen-Related Donor Profiles." Solid State Phenomena 178-179 (August 2011): 375–84. http://dx.doi.org/10.4028/www.scientific.net/ssp.178-179.375.

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By introducing radiation damage and hydrogen and successively annealing with low thermal budgets, hydrogen-related donors are created in oxygen-lean silicon. Hydrogen-related donor profiles are induced in float-zone silicon by implanting hydrogen and/or helium and successive annealing with or without additional hydrogen introduction by a hydrogen plasma. The efficiency of the conversion of the radiation-induced damage into the hydrogen-related donors differs in dependence of the method of damage and hydrogen introduction. In proton implanted samples, the ultimate introduction rate of the donors is significantly lower than it is in helium and hydrogen co-implanted samples. Furthermore, the depth distribution of the hydrogen-related donors shows a deviance from the simulated distribution of the radiation damage induced by proton implantation not seen in case of helium-induced damage. The change in doping efficiency is discussed in respect to the hydrogen content in the different experiments.
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2

Steiner, T. "Hydrogen-Bond Distances to Halide Ions in Organic and Organometallic Crystal Structures: Up-to-date Database Study." Acta Crystallographica Section B Structural Science 54, no. 4 (August 1, 1998): 456–63. http://dx.doi.org/10.1107/s0108768197014821.

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Geometrical data on hydrogen bonds to halide ions are compiled from the currently available crystal structures. Hydrogen bonds from 25 donor types to fluoride, chloride, bromide and iodide ions are considered. Compared with earlier compilations, the increased data volume allows a finer subdivision of O—H and N—H donors, and the donors C—H, S—H and P—H can be included. For a given donor type, the hydrogen-bond distance typically increases by over 0.5 Å from fluoride to chloride, 0.15 Å from chloride to bromide and 0.25 Å from bromide to iodide acceptors. The strongest of the C—H donors considered, chloroform, forms hydrogen bonds with chloride ions with an average H...Cl separation of only 2.39 Å and an average C...Cl separation of 3.42 Å. The lengthening of the N—H covalent bond in hydrogen bonds to chloride ions is quantified from neutron diffraction data.
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3

Matyas, Melinda, Monica G. Hasmasanu, and Gabriela Zaharie. "Antioxidant Capacity of Preterm Neonates Assessed by Hydrogen Donor Value." Medicina 55, no. 11 (October 30, 2019): 720. http://dx.doi.org/10.3390/medicina55110720.

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Background and objectives: Premature newborns have a number of oxidative stress-inducing disorders. Antioxidant defense is deficient in premature newborns. Hydrogen donors can be used to evaluate the non-enzymatic antioxidant defense. By measuring hydrogen donors, a group of antioxidants can be assessed: tocopherol, ascorbic acid, and glutathione. These represent the most relevant group of non-enzymatic antioxidants. The main aim of this study was to evaluate the non-enzymatic antioxidant defense capacity of premature newborns by measuring hydrogen donors. Materials and Methods: We evaluated the non-enzymatic antioxidant capacity by hydrogen donor measurement in 24 premature newborns with various oxidative stress-inducing disorders and in 14 premature newborns without oxidative stress-inducing conditions. Statistical analysis was performed using the Statistica program (v. 8, StatSoft, Round Rock, TX, USA). Differences between groups were tested with Wilcoxon matched test for quantitative paired data or Mann–Whitney test for quantitative independent data. The Z test for proportions was used to compare qualitative data among subgroups. Results: Hydrogen donors in the study group had a significantly lower value on the first day of life compared to the value of the control group. Also, the hydrogen donor value in the study group was significantly lower on the first day compared to the third day of life (p < 0.05). Neonates with mild respiratory distress (14 cases) had increased hydrogen donor values on their third day of life compared to the first day of life. Conclusions: The antioxidant capacity is influenced by oxidative stress-inducing disorders. Respiratory distress influenced the hydrogen donor value and antioxidant defense. Antioxidant defense gradually improves after birth according to gestational age.
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4

Kaduk, James A., Amy M. Gindhart, and Thomas N. Blanton. "Crystal structure of atazanavir, C38H52N6O7." Powder Diffraction 35, no. 2 (April 6, 2020): 129–35. http://dx.doi.org/10.1017/s0885715620000135.

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The crystal structure of atazanavir has been solved and refined using synchrotron X-ray powder diffraction data and optimized using density functional techniques. Atazanavir crystallizes in space group P21 (#4) with a = 15.33545(7), b = 5.90396(3), c = 21.56949(13) Å, β = 96.2923(4)°, V = 1941.134(11) Å3, and Z = 2. Despite being labeled as “atazanavir sulfate”, the commercial reagent sample consisted of atazanavir free base. The structure consists of an array of extended-conformation molecules parallel to the ac-plane. Although the atazanavir molecule contains only four classical hydrogen bond donors, hydrogen bonding is, surprisingly, important to the crystal energy. Both intra- and intermolecular hydrogen bonds are significant. The hydroxyl group forms bifurcated intramolecular hydrogen bonds to a carbonyl oxygen atom and an amide nitrogen. Several amide nitrogens act as donors to the hydroxyl group and carbonyl oxygen atoms. An amide nitrogen acts as a donor to another amide nitrogen. Several methyl, methylene, methyne, and phenyl hydrogens participate in hydrogen bonds to carbonyl oxygens, an amide nitrogen, and the pyridine nitrogen. The powder pattern is included in the Powder Diffraction File™ as entry 00-065-1426.
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5

Starikova, Ye G., N. V. Ryazantseva, V. V. Novitsky, L. A. Tashireva, Yu V. Starikov, Ye A. Stepovaya, I. A. Osikhov, O. A. Vasiliyeva, and Y. D. Yakushina. "The role of intracellular gaseous transmitters hydrogen sulfide and nitric oxide in apoptosis regulation of normal and cancer cells." Bulletin of Siberian Medicine 10, no. 6 (December 28, 2011): 40–44. http://dx.doi.org/10.20538/1682-0363-2011-6-40-44.

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Investigation of influence of gases nitric oxide and hydrogen sulfide on apoptotic cell death of Jurlat cells and mononuclear leucocytes of healthy donors was conducted. It was shown that 100 mmol sodium nitroprussidi increased the apoptosis of T lymphoblast leukemia cells after 15’ incubation. 10 and 100 mmol donor of hydrogen sulfide caused apoptotic death of Jurkat cells after 15’ incubation. 15’ exposure of nitric oxide and hydrogen sulfide donors did not lead to the changes of cell death of mononuclear leucocytes. Gaseous transmitters NO and H2S increased necrosis of Jurkat cells and mononuclear leucocytes after 24 h incubation with the appropriate gase’s donor.
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6

Pokotilo, Yurii M., Alla N. Petukh, Valentin V. Litvinov, and B. G. Tsvirko. "Hydrogen-Related Donors in Silicon: Centers with Negative Electronic Correlation Energy." Solid State Phenomena 108-109 (December 2005): 229–34. http://dx.doi.org/10.4028/www.scientific.net/ssp.108-109.229.

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The transformation of the shallow hydrogen-related donors, which have been formed in the silicon samples by irradiation of the low energy (300 keV) protons and following heat treatment under 350 0С or 450 0С was investigated. The experiment was carried out on Ag-Mo-Si Shottky diodes and diodes with shallow p+-n-junction. The concentration and distribution of these donors were defined by C-V-method at 1.2 MHz frequency. Using temperature dependence of equilibrium electron concentration it was established, that the hydrogen-related donors were charged controlled centers with negative electronic correlation energy (U<0). The transformation between both equilibrium configurations of the double hydrogen-related donor takes place when value of the Fermi level is arranged near Ec-0.30 eV. It was revealed that the donor transformation from neutral into double charged state have been stimulated by minority carriers trapping under room temperature when Fermi level was higher then level of the double electron occupation E(0/++)= Ec-0.30 eV.
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7

Chertanova, L., and C. Pascard. "Statistical analysis of noncovalent interactions of anion groups in crystal structures. I. Hydrogen bonding of sulfate anions." Acta Crystallographica Section B Structural Science 52, no. 4 (August 1, 1996): 677–84. http://dx.doi.org/10.1107/s0108768196003035.

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The hydrogen-bond acceptor characteristics of sulfate dianions are analyzed in crystal structures of small molecules. For 85 anions, neither coordinated to metal ions nor covalently bonded, 697 hydrogen bonds are faund. Of these, 266 (38%) are the O...H—O type and 431 (62%) are the O...H—N type, proportions that correspond well to the stoichiometry of the compounds studied and indicate no preference for a particular donor. The analysis of the data set, after classifying the hydrogen bonds according to the different types of donors, shows that O...H—O bonds are more linear than O...H—N. The anion oxygen–acceptor function is characterized by multiple hydrogen bonding. Only in 56 cases does a sulfate oxygen participate in a single hydrogen bond. In most cases every sulfate oxygen is coordinated by two (187 cases) or three (89 cases) hydrogen bonds. For three H donors, the preferred coordination geometry of the sulfate oxygen is pyramidal. The most frequent coordination around a sulfate dianion is with eight to ten H donors. Thus, sulfate dianions can play a significant cohesive role in molecular aggregation.
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8

Xiao, Ke, Yongxin Hu, Yongyong Wan, XinXin Li, Qin Nie, Hao Yan, Liming Wang, et al. "Hydrogen bond activated glycosylation under mild conditions." Chemical Science 13, no. 6 (2022): 1600–1607. http://dx.doi.org/10.1039/d1sc05772c.

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A mild glycosylation system was developed using glycosyl imidate donors and a charge-enhanced thiourea H-bond donor catalyst. The method can be used for the effective synthesis of O-, C-, S- and N-glycosides and chemoselective one-pot glycosylation.
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9

Cao, Lichuang, Cameron J. Hunt, Anne S. Meyer та René Lametsch. "New Insight into the Substrate Selectivity of Bovine Milk γ-glutamyl Transferase via Structural and Molecular Dynamics Predictions". Molecules 28, № 12 (9 червня 2023): 4657. http://dx.doi.org/10.3390/molecules28124657.

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Bovine milk γ-glutamyltransferase (BoGGT) can produce γ-glutamyl peptides using L-glutamine as a donor substrate, and the transpeptidase activity is highly dependent on both γ-glutamyl donors and acceptors. To explore the molecular mechanism behind the donor and acceptor substrate preferences for BoGGT, molecular docking and molecular dynamic simulations were performed with L-glutamine and L-γ-glutamyl-p-nitroanilide (γ-GpNA) as donors. Ser450 is a crucial residue for the interactions between BoGGT and donors. BoGGT forms more hydrogen bonds with L-glutamine than γ-GpNA, promoting the binding affinity between BoGGT and L-glutamine. Gly379, Ile399, and Asn400 are crucial residues for the interactions between the BoGGT intermediate and acceptors. The BoGGT intermediate forms more hydrogen bonds with Val-Gly than L-methionine and L-leucine, which can promote the transfer of the γ-glutamyl group from the intermediate to Val-Gly. This study reveals the critical residues responsible for the interactions of donors and acceptors with the BoGGT and provides a new understanding of the substrate selectivity and catalytic mechanism of GGT.
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10

Lavrov, Eduard V., Igor Chaplygin, Frank Herklotz, and Vladlen V. Melnikov. "Hydrogen Donors in Anatase TiO2." physica status solidi (b) 258, no. 8 (July 14, 2021): 2100171. http://dx.doi.org/10.1002/pssb.202100171.

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Дисертації з теми "Hydrogen donors"

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Lavrov, Eduard V. "Hydrogen donors in ZnO and TiO2." SPIE, 2017. https://tud.qucosa.de/id/qucosa%3A34876.

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The results of combined IR absorption and photoconductivity studies on hydrogen donors in ZnO and TiO2 are presented. It is shown that hydrogen donors in ZnO and rutile TiO2 can be detected as Fano resonances in the photoconductivity spectra at the frequencies corresponding to the vibrational modes of these defects. In the case of anatase TiO2 IR absorption lines at 3412 and 3417 cm-1 are assigned to the stretching local vibrational modes of a donor in the neutral and the positive charge states, respectively. Interstitial hydrogen is suggested as a tentative model for the defect giving rise to these vibrational modes.
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2

Lane, Jakob. "Dual Hydrogen Bond Donors for Anion Recognition." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/27262.

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Anions are important in many biological and chemical processes, therefore the development of receptors for binding, sensing and extraction is necessary for a range of potential applications, including in medicine and the environment. This thesis details both the development of novel dual hydrogen bonding receptors for anions, and work towards anion sensing and extraction using dual hydrogen bonding motifs. Chapter 2 describes the synthesis and anion binding investigations into the dual hydrogen bond donating motifs diaminomethylenemalononitriles and diaminomethyleneindanediones. Two novel series of compounds were synthesised and anion affinity and selectivity determined in organic solvent via 1H NMR titrations, crystallographic and computational analysis. Anion binding properties are compared to the widely researched thiourea motif. In Chapter 3, the powerful dual H-bond donating squaramide moiety is appended with fluorophores either directly or through a methylene spacer to produce a library of novel fluorogenic squaramide receptors. The acidity of these squaramides substituents was determined experimentally in order to understand their behaviour in DMSO. UV-Vis and fluorescence anion screens and titrations were performed, which indicate that ratiometric anion sensing can take place in DMSO, induced by aggregation/disaggregation mechanisms upon interaction with anions. Selectivity was observed for interaction with sulfate, acetate and dihydrogen phosphate, with interaction with sulfate resulting in the greatest fluorescence response for all receptors. Chapter 4 describes the development of squaramide-functionalised polymers for anion sensing and extraction. Water soluble polyethylene glycol methyl methacrylate based polymers were functionalised with squaramides and anion binding investigated by UV-Vis and fluorescence screens, and by 1H NMR titration. When dissolved in water, the squaramide appended polymer undergoes a phase transition upon heating. This is exploited to lead to anion extraction that offers selectivity for sulfate and dihydrogen phosphate over anions that are bound less strongly by the squaramide moiety.
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3

Bowyer, Ellis T. "Electrical detection of hydrogen-like donors in silicon." Thesis, University of Surrey, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.616937.

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Quantum computers have been the dream of many scientists for over thirty years but the fact such devices still consist of only a handful of quantum bits (qubits) highlights the fact that this is not a trivial concept. However the potential of powerful parallelisation, which could out perform classical computers remains a huge incentive for researchers. Interest in donors in silicon has grown since being put forward as a possible candidate for a qubit in 1998 by Kane. Group V atoms, such as phosphorus, substitute into the silicon lattice but possess an extra outer shell electron compared to the neighbouring silicon atoms. This electron orbits the donor much like a hydrogen atom trapped in a silicon crystal. Despite overlapping with thousands of silicon atom, the donor electron experiences very little interaction with its surroundings leading to long spin lifetimes and coherence times. In this thesis the orbital state of donor electrons is explored. Electrical detection is used as a method of reading out coherent and incoherent manipulations of donor orbits. This is due to the high sensitivity achievable with electrical measurements. This work looked the detection mechanism in low and high intensity regimes as well as exploring the dynamics of the electron donor system in the time domain. Such experiments are use to measure the saturation of absorption and the electron-ion recombination rate (a quantity for which a range of values have previously been reported). Finally, the first electrical detection of coherent control of orbital states in silicon donors is presented, with T.J. found to be 30 - SOps.
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4

Carter, Justin Michael. "Hydrogen sulfide releasing donors and their benefits to crop growth." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6554.

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Hydrogen sulfide (H2S) has been identified to be produced in small quantities in plants and animals. H2S has been shown to have numerous benefits including improving the tolerance of plants to a variety of stressors and improving the harvest yields of plants. Because of the ever-increasing population of the planet, it is necessary to grow more food and increasing the yield of a harvest is essential to do that. GYY-4137, a H2S donor, releases H2S very slowly in water but released it much faster with organic solvents and soil. The long-term growth of plants with GYY-4137 was investigated for 6 weeks with radishes, peas, and lettuce. Dithiophosphosphates were investigated as H2S donors to be used to improve the growth of crops. These donors were studied to determine their degradation rates in water and organic solvents. Rates of H2S release were compared at various concentrations in water and contrasted with the release of H2S from GYY-4137. Dialkyldithiophosphates have not been used in prior work as H2S donors to improve crop yields. Maize was grown for 4 weeks with dibutyldithiophosphate ammonium salt and the plants showed up to 38% increase in weight. These results show that dibutyldithiophosphate releases H2S at a similar rate to that of GYY-4137 and can have a significant benefit to increase the weight of maize.
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5

Auvil, Tyler Jay. "Unique Reactivity Patterns Catalyzed by Internal Lewis Acid Assisted Hydrogen Bond Donors." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1395759920.

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6

Barth, Florian Verfasser], and Hendrik [Akademischer Betreuer] [Zipse. "Heterocyclic borane complexes as hydrogen atom donors in reduction reactions / Florian Barth. Betreuer: Hendrik Zipse." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/108012229X/34.

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7

Brown, Adam Ross. "I. Engaging Cationic Intermediates in Asymmetric Catalysis: Enantioselective Reactions of Carbenium Ions and N,N-Dialkyliminium Ions II. Enantioselective Catalysis of the Cope-Type Hydroamination by H-Bond Donors." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:11009.

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The research described here explores the ability of dual H-bond donor catalysts to induce asymmetry in a variety of synthetically useful transformations that proceed via diverse reactive intermediates. In Chapters 1-3, we investigate ureas and thioureas as anion-binding catalysts for asymmetric reactions that proceeed via cationic intermediates with little precedent as electrophiles in asymmetric catalysis. Chapter 4 details our application of H-bond donor catalysis to the Cope-type hydroamination. Chapter 1 describes the development of an asymmetric aldehyde alkylation catalyzed by a bifunctional primary aminothiourea. A variety of 2-aryl propionaldehydes are alkylated with benzhydryl bromides in moderate to good yields and good enantioselectivities. Catalyst structure-activity relationship studies of the alkylation pointed towards electrophile activation by the dual H-bond donor moiety. Experiments aimed at gaining a better understanding of the electophile activation mode and characterizing the activated electrophilic intermediate in the alkylation reaction are described in Chapter 2. The development of an enantioselective cyanide addition to N,N-dialkyliminium intermediates is the subject of Chapter 3. A variety of strategies for accessing N,N- dialkyliminium ions are established, and chiral thioureas are shown to promote the addition of cyanide to such intermediates with moderate enantioselectivities. Chapter 4 details our discovery that thioureas bearing polarizable and conformationally constrained aromatic groups catalyze highly enantioselective Cope-type hydroaminations. This powerful transformation provides a variety of chiral pyrrolidine products under mild reaction conditions.
Chemistry and Chemical Biology
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8

Wolf, Inka M. "Metal containing and metal free organocatalysts: new design concepts for hydrogen bond donors and substrate activation = Metallhaltige und metallfreie Organokatalysatoren: Entwicklung von neuartigen Konzepten von wasserstoffbrücken Donoren und zur Substrat-Aktivierung." kostenfrei, 2010. http://d-nb.info/100061364X/34.

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9

Schafer, Andrew Gerard. "Silanediols As Hydrogen Bond Donor Catalysts." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1396442513.

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10

Lewis, Rhobert. "Proton acceptor-proton donor interactions in gases and low temperature matrices." Thesis, University of South Wales, 1990. https://pure.southwales.ac.uk/en/studentthesis/proton-acceptorproton-donor-interactions-in-gases-and-low-temperature-matrices(bb889443-24fd-427e-b994-522a416d5988).html.

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The infrared spectra of mixtures of HC1 and the following have been recorded in the gas phase and low temperature matrices: argon, ethene, ethyne, de-benzene, fluorobenzene, CO, CO 2 , SOz, CC1*, CHCls, de-acetone, ethanal, HCN and acrylonitrile. The features which have been measured are: firstly the changes in the integrated intensity of lines in the rotation-vibration spectrum of the fundamental HC1 band as a function of interactions with other components of the mixture, and secondly bands associated with specific interactions forming hydrogen-bonded complexes. The enhancement of HC1 is generally found to vary linearly with the pressure of added gas over a limited pressure range. Assuming that line enhancement is caused by collisionally-induced rotation-translation energy exchange to or from the HC1 molecule, a combination of expressions derived from Ehrenfest's Adiabatic Principle and the "rigid rotor" approximation leads to a model which qualitatively predicts the enhancements observed. The model also rationalises the enhancement of HCN and SOa absorptions by HC1. Examination of the experimentally determined data leads to the conclusion that the total intermolecular force between the monomer base and HC1 controls the degree of enhancement but it is concluded that there is no general connection between the degree of HC1 enhancement and hydrogen-bond strength. Hydrogen-bonded complexes were examined in the gas and argon matrix phases and the shifts in the modified hydrogen chloride stretch compared for various bases. The spectra of pi-complexes formed between HC1 and ethene, ethyne and benzene were found to be detectable by low-resolution infrared spectroscopy at room temperature. Complexation of HCN, he-acetone and de-acetone with HC1 caused CN and C=O band shifts. The Chem-X molecular modelling program was evaluated by using it to predict the geometry of simple complexes for which experimental data is already available. It is concluded that the program requires more development before it can be confidently used as a theoretical aid with which to study hydrogen-bonded dimers.
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Книги з теми "Hydrogen donors"

1

Kuo, Jonathan Lan. Using First Row Transition Metal Hydrides as Hydrogen Atom Donors. [New York, N.Y.?]: [publisher not identified], 2017.

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2

Inokuma, Tsubasa. Development of Novel Hydrogen-Bond Donor Catalysts. Tokyo: Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54231-5.

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3

Inokuma, Tsubasa. Development of Novel Hydrogen-Bond Donor Catalysts. Springer London, Limited, 2013.

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4

Inokuma, Tsubasa. Development of Novel Hydrogen-Bond Donor Catalysts. Springer, 2013.

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5

Inokuma, Tsubasa. Development of Novel Hydrogen-Bond Donor Catalysts. Springer, 2015.

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6

Development Of Novel Hydrogenbond Donor Catalysts. Springer Verlag, Japan, 2012.

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7

Kirchman, David L. Processes in anoxic environments. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198789406.003.0011.

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During organic material degradation in oxic environments, electrons from organic material, the electron donor, are transferred to oxygen, the electron acceptor, during aerobic respiration. Other compounds, such as nitrate, iron, sulfate, and carbon dioxide, take the place of oxygen during anaerobic respiration in anoxic environments. The order in which these compounds are used by bacteria and archaea (only a few eukaryotes are capable of anaerobic respiration) is set by thermodynamics. However, concentrations and chemical state also determine the relative importance of electron acceptors in organic carbon oxidation. Oxygen is most important in the biosphere, while sulfate dominates in marine systems, and carbon dioxide in environments with low sulfate concentrations. Nitrate respiration is important in the nitrogen cycle but not in organic material degradation because of low nitrate concentrations. Organic material is degraded and oxidized by a complex consortium of organisms, the anaerobic food chain, in which the by-products from physiological types of organisms becomes the starting material of another. The consortium consists of biopolymer hydrolysis, fermentation, hydrogen gas production, and the reduction of either sulfate or carbon dioxide. The by-product of sulfate reduction, sulfide and other reduced sulfur compounds, is oxidized back eventually to sulfate by either non-phototrophic, chemolithotrophic organisms or by phototrophic microbes. The by-product of another main form of anaerobic respiration, carbon dioxide reduction, is methane, which is produced only by specific archaea. Methane is degraded aerobically by bacteria and anaerobically by some archaea, sometimes in a consortium with sulfate-reducing bacteria. Cultivation-independent approaches focusing on 16S rRNA genes and a methane-related gene (mcrA) have been instrumental in understanding these consortia because the microbes remain uncultivated to date. The chapter ends with some discussion about the few eukaryotes able to reproduce without oxygen. In addition to their ecological roles, anaerobic protists provide clues about the evolution of primitive eukaryotes.
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Частини книг з теми "Hydrogen donors"

1

Gansäuer, Andreas, Lei Shi, Matthias Otte, Inga Huth, Antonio Rosales, Iris Sancho-Sanz, Natalia M. Padial, and J. Enrique Oltra. "Hydrogen Atom Donors: Recent Developments." In Topics in Current Chemistry, 93–120. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/128_2011_124.

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2

Whiteman, Matthew, Alexis Perry, Zongmin Zhou, Mariarosaria Bucci, Andreas Papapetropoulos, Guiseppe Cirino, and Mark E. Wood. "Phosphinodithioate and Phosphoramidodithioate Hydrogen Sulfide Donors." In Chemistry, Biochemistry and Pharmacology of Hydrogen Sulfide, 337–63. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-18144-8_17.

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3

Weber, Jörg, and Dirk I. Bohne. "Passivation of Thermal Donors by Atomic Hydrogen." In Early Stages of Oxygen Precipitation in Silicon, 123–40. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0355-5_7.

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Waser, Mario. "Chiral Brønsted Acids and Hydrogen Bonding Donors." In Asymmetric Organocatalysis in Natural Product Syntheses, 97–118. Vienna: Springer Vienna, 2012. http://dx.doi.org/10.1007/978-3-7091-1163-5_7.

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5

Lee, Zheng-Wei, and Lih-Wen Deng. "Role of H2S Donors in Cancer Biology." In Chemistry, Biochemistry and Pharmacology of Hydrogen Sulfide, 243–65. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-18144-8_13.

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6

Zhao, Yu, Armando Pacheco, and Ming Xian. "Medicinal Chemistry: Insights into the Development of Novel H2S Donors." In Chemistry, Biochemistry and Pharmacology of Hydrogen Sulfide, 365–88. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-18144-8_18.

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7

Jeffrey, George A., and Wolfram Saenger. "Weak Hydrogen-Bonding Interactions Formed by C-H Groups as Donors and Aromatic Rings as Acceptors." In Hydrogen Bonding in Biological Structures, 156–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-85135-3_10.

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8

Pokotilo, Ju M., A. N. Petukh, V. V. Litvinov, and B. G. Tsvirko. "Hydrogen-Related Donors in Silicon: Centers with Negative Electronic Correlation Energy." In Solid State Phenomena, 229–34. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/3-908451-13-2.229.

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9

Suezawa, M. "Generation of Thermal Donors, Nitrogen-Oxygen Complexes and Hydrogen-Oxygen Complexes in Silicon." In Early Stages of Oxygen Precipitation in Silicon, 207–21. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0355-5_12.

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10

Kolupaev, Yu E., Yu V. Karpets, and Т. О. Yastreb. "Induction of Wheat Plant Resistance to Stressors by Donors of Nitric Oxide and Hydrogen Sulfide." In Wheat Production in Changing Environments, 521–56. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6883-7_21.

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Тези доповідей конференцій з теми "Hydrogen donors"

1

Møller, Kristian, Henrik Kjaergaard, Anne Hansen, and Camilla Tram. "HYDROPEROXIDES AS HYDROGEN BOND DONORS." In 71st International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2016. http://dx.doi.org/10.15278/isms.2016.ti10.

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2

Lavrov, Eduard V. "Hydrogen donors in ZnO and TiO2." In Fourth Conference on Sensors, MEMS and Electro-Optic Systems, edited by Monuko du Plessis. SPIE, 2017. http://dx.doi.org/10.1117/12.2245420.

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3

Corporan, Edwin, and Donald K. Minus. "Hydrogen Donors: Thermal Stabilizers for JP-8+100 at High Temperatures." In ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/99-gt-056.

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Анотація:
The effectiveness of hydrogen donor compounds as additives to reduce pyrolytic deposition in JP-8+100 at high temperatures was assessed. Decalin and 1,2,3,4 tetrahydroquinoline (THQ) were added to JP-8+100 at 0.5% (decalin only), 1.0 and 2.5% w/w concentrations and tested in a flow reactor at a fuel exit temperature of 600°C at 5.2 MPa. Measurements of carbon deposits along the tube and gas chromatography/mass spectrometry (GC/MS) analysis of the stressed and unstressed liquid fuel were used to assess effectiveness of the additive, and the degree of fuel decomposition. Additionally, liquid-to-gas conversion was determined, and the composition of the gas was determined via GC. Experimental results show significant reductions in pyrolytic deposition in JP-8+100 with the additives relative to the baseline fuel. Tests with decalin showed negligible effects on thermal oxidative deposits, while THQ produced significant increases in thermal oxidative deposits. The effects of the additives on fuel thermal decomposition and conversion rates are also discussed.
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4

Ovalles, Cesar, Carlos Vallejos, Tito Vasquez, Jorge Martinis, Alfredo Perez-Perez, Edgar Cotte, Luis Castellanos, and Hector Rodriguez. "Extra-Heavy Crude Oil Downhole Upgrading Process using Hydrogen Donors under Steam Injection Conditions." In SPE International Thermal Operations and Heavy Oil Symposium. Society of Petroleum Engineers, 2001. http://dx.doi.org/10.2118/69692-ms.

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5

Karaman-Kutluay, Yasemin, Yesim Kaya-Yasar, Turgut Emrah Bozkurt, and Inci Sahin-Erdemli. "Hydrogen sulphide donors prevent hyperreactivity of mice tracheas in an in vitro lipopolysaccharide-induced inflammation model." In ERS International Congress 2018 abstracts. European Respiratory Society, 2018. http://dx.doi.org/10.1183/13993003.congress-2018.oa1942.

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6

Zhong, L. G., Y. J. Liu, H. F. Fan, and S. J. Jiang. "Liaohe Extra-Heavy Crude Oil Underground Aquathermolytic Treatments Using Catalyst and Hydrogen Donors under Steam Injection Conditions." In SPE International Improved Oil Recovery Conference in Asia Pacific. Society of Petroleum Engineers, 2003. http://dx.doi.org/10.2118/84863-ms.

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7

Zhang, Zhiyong, Maria Antonieta Barrufet, Robert H. Lane, and Daulat Debataraja Mamora. "Experimental Study of In-Situ Upgrading for Heavy Oil Using Hydrogen Donors and Catalyst Under Steam Injection Condition." In SPE Heavy Oil Conference Canada. Society of Petroleum Engineers, 2012. http://dx.doi.org/10.2118/157981-ms.

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8

Korzenietz, Andreas, Frank Hille, Franz-Josef Niedernostheide, Christian Sandow, Gerhard Wachutka, and Gabriele Schrag. "TCAD Simulations Combined with Free Carrier Absorption Experiments Revealing the Physical Nature of Hydrogen-Related Donors in IGBTs." In 2019 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD). IEEE, 2019. http://dx.doi.org/10.1109/sispad.2019.8870353.

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9

Korzenietz, A., G. Wachutka, F. Hille, C. Sandow, and F. J. Niedernostheide. "Free-carrier absorption experiments for the investigation of the physical device properties in IGBTs with hydrogen-related donors." In 2017 29th International Symposium on Power Semiconductor Devices and IC's (ISPSD). IEEE, 2017. http://dx.doi.org/10.23919/ispsd.2017.7988936.

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10

Ovalles, Cesar, Jorge Martinis, Alfredo Perez-Perez, Edgar Cotte, Luis Castellanos, and Hector Rodriguez. "Physical and Numerical Simulation of an Extra-Heavy Crude Oil Downhole Upgrading Process Using Hydrogen Donors Under Cyclic Steam Injection Conditions." In SPE Latin American and Caribbean Petroleum Engineering Conference. Society of Petroleum Engineers, 2001. http://dx.doi.org/10.2118/69561-ms.

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Звіти організацій з теми "Hydrogen donors"

1

Adrian, Neal R., Clint M. Arnett, and Robert F. Hickey. Stimulating the Anaerobic Biodegradation of Explosives by the Addition of Hydrogen or Electron Donors That Produce Hydrogen. Fort Belvoir, VA: Defense Technical Information Center, September 2003. http://dx.doi.org/10.21236/ada418612.

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2

McCoy, Benjamin J., and J. M. Smith. FUNDAMENTAL KINETICS OF SUPERCRITICAL COAL LIQUEFACTION: EFFECT OF CATALYSTS AND HYDROGEN-DONOR SOLVENTS. Office of Scientific and Technical Information (OSTI), August 1998. http://dx.doi.org/10.2172/790138.

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3

McCoy, B. J., and J. M. Smith. Fundamental Kinetics of Supercritical Coal Liquefaction: Effect of Catalysts and Hydrogen-Donor Solvents. Office of Scientific and Technical Information (OSTI), July 1997. http://dx.doi.org/10.2172/643507.

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4

McCoy, Ben J., Girodhar Madras, J. M. Smith, and Yoichi Kodera. Fundamental Kinetics of Supercritical Coal Liquefaction: Effect of Catalysts and Hydrogen-Donor Solvents. Office of Scientific and Technical Information (OSTI), April 1997. http://dx.doi.org/10.2172/2029.

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5

McCoy, B. J., J. M. Smith, G. Madras, and Y. Kodera. Fundamental kinetics of supercritical coal liquefaction: effect of catalysts and hydrogen-donor solvents. Second quarterly report, 1996. Office of Scientific and Technical Information (OSTI), July 1996. http://dx.doi.org/10.2172/622609.

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6

Tierney, J. W., and I. Wender. Coal liquefaction process streams characterization and evaluation: Assessment of hydroaromatic content and hydrogen donor ability of coal liquefaction intermediates by means of catalytic dehydrogenation. Office of Scientific and Technical Information (OSTI), February 1994. http://dx.doi.org/10.2172/10143666.

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