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Relevant bibliographies by topics / 1H and 13C nuclear magnetic resonance

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Academic literature on the topic '1H and 13C nuclear magnetic resonance'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

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Journal articles on the topic "1H and 13C nuclear magnetic resonance"

1

McLean, Stewart, Marion Perpick-Dumont, William F. Reynolds, Helen Jacobs, and Sagar Singh Lachmansing. "Unambiguous structural and nuclear magnetic resonance spectral characterization of two triterpenoids of Maprouneaguianensis by two-dimensional nuclear magnetic resonance spectroscopy." Canadian Journal of Chemistry 65, no. 11 (1987): 2519–25. http://dx.doi.org/10.1139/v87-420.

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It is shown that 1H–13C shift-correlated two-dimensional spectra obtained for polarization transfer via two-bond and three-bond 13C–1H coupling can, in conjunction with related experiments, be used to assign unambiguously the molecular skeletons of two of the less common triterpenes, moretenone and 3-acetylaleuritolic acid. It is concluded that this is a technique of considerable generality for assigning structures of triterpenes and is more reliable than alternative approaches such as mass spectral fragmentation patterns. It has the additional benefit of simultaneously providing reliable 13C

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Heinisch, Gottfried, and Wolfgang Holzer. "13C nuclear magnetic resonance spectra of 3,6-disubstituted pyridazines." Canadian Journal of Chemistry 69, no. 6 (1991): 972–77. http://dx.doi.org/10.1139/v91-142.

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The 13C nuclear magnetic resonance spectra of 17 3,6-disubstituted pyridazine derivatives have been systematically analyzed. Chemical shifts and various 13C, 1H coupling constants are reported. Attempts were made to correlate these data with results obtained from semiempirical molecular orbital calculations as well as with substituent electronegativities and Taft's substituent constants σI and σR0. Key words: 3,6-disubstituted pyridazines, 13C NMR spectroscopy, 13C, 1H spin coupling constants.

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Li, Chuanjiang, Hui Wang, Manuel Juárez та Eric Dongliang Ruan. "Structural Characterization of Amadori Rearrangement Product of Glucosylated Nα-Acetyl-Lysine by Nuclear Magnetic Resonance Spectroscopy". International Journal of Spectroscopy 2014 (17 квітня 2014): 1–6. http://dx.doi.org/10.1155/2014/789356.

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Maillard reaction is a nonenzymatic reaction between reducing sugars and free amino acid moieties, which is known as one of the most important modifications in food science. It is essential to characterize the structure of Amadori rearrangement products (ARPs) formed in the early stage of Maillard reaction. In the present study, the Nα-acetyl-lysine-glucose model had been successfully set up to produce ARP, Nα-acetyl-lysine-glucose. After HPLC purification, ARP had been identified by ESI-MS with intense [M+H]+ ion at 351 m/z and the purity of ARP was confirmed to be over 90% by the relative in

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Butler, Ian R., and William R. Cullen. "A nuclear magnetic resonance spectroscopic study of some tri-sulfide bridged ferrocenes." Canadian Journal of Chemistry 67, no. 11 (1989): 1851–58. http://dx.doi.org/10.1139/v89-288.

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The synthesis of some new [S3]-bridged aminoferrocenophanes is described. The 1H nuclear magnetic resonance spectra of these compounds are completely assigned and are discussed in terms of the stereochemistry of the tri-sulfide bridge. In addition 13C/1H correlation spectra of one of the derivatives are presented to illustrate the complete assignment of the 13C spectrum. Keywords: ferrocene derivatives, sulfur-bridged, synthesis, NMR, conformation.

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Friedrich, Jan O., and Roderick E. Wasylishen. "A 1H and 13C nuclear magnetic resonance study of carnosine." Canadian Journal of Chemistry 64, no. 11 (1986): 2132–38. http://dx.doi.org/10.1139/v86-351.

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The proton and carbon-13 resonance signals of carnosine (β-alanyl-L-histidine) were unambiguously assigned using a variety of nmr techniques including proton–carbon chemical shift correlations, titrations of nmr chemical shifts, coupling constants, and isotope shifts. From the 13C nmr titration, carnosine's three pKa values were estimated to be 2.7, 7.1, and 10.6, and it was found that the imidazole ring existed predominantly as the 3-H tautomer in basic solution. Conformational information about the Cα—Cβ bond and about the N—Cα bond was deduced from observed 3J(C,H) and 3J(H,H) values. The 1

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6

Stoessl, Albert, G. L. Rock, and J. B. Stothers. "The isolation, structure, and stereochemistry of traversiadiene. The precursor hydrocarbon of traversianal biosynthesis." Canadian Journal of Chemistry 67, no. 8 (1989): 1302–4. http://dx.doi.org/10.1139/v89-199.

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A tricyclic diene, traversiadiene, isolated from cultures of Cercosporatraversiana has been shown to have the structure and stereochemistry of the previously postulated hydrocarbon intermediate on the biosynthetic pathway to traversianal (1). Detailed:1H and 13C magnetic resonance studies, including homo- and heteronuclear correlation spectra, led to the gross structure, and the stereochemistry was established through a series of nuclear Overhauser effect difference spectra. Keywords: diterpene, traversiadiene, 1H and 13C magnetic resonance spectra.

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Drew, Jacinta, Jean-Robert Brisson, Peter Morand, and Arthur G. Szabo. "1H and 13C nuclear magnetic resonance assignment of fluorescent olefinic sterol derivatives for use as membrane probes." Canadian Journal of Chemistry 65, no. 8 (1987): 1784–94. http://dx.doi.org/10.1139/v87-300.

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A number of fluorescent steroids with unsaturated sidechains have been analyzed by high resolution 1H and 13C nmr spectroscopy. The geometry of the olefinic systems was assigned on the basis of 1H–1H shift-correlated spectra (COSY) and selected nOe difference experiments. For one of these compounds, a 13C–1H shift-correlated spectrum, a COSY spectrum, a 1H J-resolved spectrum as well as nOe experiments on the angular methyl groups permitted complete ring proton assignment and coupling constant analysis. The high degree of similarity of the ring carbon 13C chemical shifts of these steroids and

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Zhongshan, Wang, Thomas T. Nakashima, Karl R. Kopecky, and José Molina. "Qinghaosu: 1H and 13C nuclear magnetic resonance spectral assignments and luminescence." Canadian Journal of Chemistry 63, no. 11 (1985): 3070–74. http://dx.doi.org/10.1139/v85-508.

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The complete assignment of the 1H and 13C nmr signals for Qinghaosu 1 has been made. Treatment of 1 with methoxide ion at 80 °C results in bright luminescence when carried out in the presence of fluorescers. Several products are formed when methanol is present, but in toluene only one product is formed when methanol-free methoxide is used. Its structure is tentatively assigned as 1-(1-methoxycarbonylethyl)-2,6-dimethyl-2-hydroxybicyclo[3.3.1]nonan-9-one.

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Schaefer, Ted, Guy M. Bernard, and Frank E. Hruska. "An estimate of the spin–spin coupling constant, 1J(1H,13C), in gaseous benzene." Canadian Journal of Chemistry 74, no. 8 (1996): 1524–25. http://dx.doi.org/10.1139/v96-169.

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An excellent linear correlation (r = 0.9999) exists between the spin–spin coupling constants 1J(1H,13C), in benzene dissolved in four solvents (R. Laatikainen et al. J. Am. Chem. Soc. 117, 11006 (1995)) and Ando's solvation dielectric function, ε/(ε – 1). The solvents are cyclohexane, carbon disulfide, pyridine, and acetone. 1J(1H,13C)for gaseous benzene is predicted to be 156.99(2) Hz at 300 K. Key words: spin–spin coupling constants, 1J(1H,13C) for benzene in the vapor phase; spin–spin coupling constants, solvent dielectric constant dependence of 1J(1H,13C) in benzene; benzene, estimate of 1

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Szarek, Walter A., B. Mario Pinto, and Masaharu Iwakawa. "Nucleoside analogs involving modifications in the carbohydrate ring: nuclear magnetic resonance spectroscopic studies." Canadian Journal of Chemistry 63, no. 8 (1985): 2162–68. http://dx.doi.org/10.1139/v85-355.

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The concomitant use of 1H nmr and 13C nmr spectroscopy as a probe of structure, stereochemistry, and conformation of several nucleoside analogs derived from 1-oxa-4-thiacyclohexane is described. The 1H nmr spectroscopic properties of an acyclic nucleoside analog derived from uridine are also described.

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Dissertations / Theses on the topic "1H and 13C nuclear magnetic resonance"

1

Mtongana, Sibusiso. "A multinuclear (1H, 13C, 31P and 195Pt) magnetic resonance spectroscopy study of mixed ligand platinum(II) complexes with new N,N-dialkyl-N'-acyl(aroyl)thioureas as ligands." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52649.

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Lima, Bruna Vital de. "Hidr?lise e caracteriza??o de poliacrilamida hidrofobicamente modificada: avalia??o da aplicabilidade na recupera??o de petr?leo." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17623.

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Made available in DSpace on 2014-12-17T15:41:48Z (GMT). No. of bitstreams: 1 Bruna Vital de Lima_DISSERT.pdf: 1526229 bytes, checksum: 072431027e1aefba9f0023f2f514ae5f (MD5) Previous issue date: 2010-02-02<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>The hydrolysis reaction in alkaline conditions of the commercial polymer poly(acrylamide-co-metacrylate of 3,5,5-trimethyl-hexane) called HAPAM, containing 0.75 % of hydrophobic groups, was carried out in 0.1 M NaCl and 0.25M NaOH solutions, varying the temperature and reaction time. The polymers were characterized by 1H and

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Chaudhry, Amirah. "13C nuclear magnetic resonance relaxation studies of uniformly 13C and 15N labelled proteins." Thesis, University of Leicester, 1997. http://hdl.handle.net/2381/30024.

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This thesis examines the problems of making 13C NMR relaxation measurements in proteins uniformly enriched with 13C and 15N isotopes and it presents a solution in the form of a new method of analysing 13C relaxation data. In uniformly doubly-labelled proteins a particular 13C spin can undergo relaxation due to its own CSA and its dipolar interactions with bonded 13C atoms and bonded and non-bonded protons. The non-bonded protons can be on the same amino acid residue or on other residues which are close in space. To quantify the dipolar interactions the internuclear vector needs to be known to

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Janich, Martin A. [Verfasser]. "Advanced methods for in vivo magnetic resonance spectroscopy of 1H and hyperpolarized 13C / Martin A. Janich." München : Verlag Dr. Hut, 2012. http://d-nb.info/1021073059/34.

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Tzou, Der-Lii M. "Solid state 13C NMR studies of the Morphology and orientational order of polymer fibers." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/30276.

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鄭家樑 and Ka-leung Cheng. "A study of the 13C-NMR properties of some fatty acid derivatives and their triacylglycerols." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31212931.

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Cheng, Ka-leung. "A study of the 13C-NMR properties of some fatty acid derivatives and their triacylglycerols /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17537307.

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Choi, Yoon S. "Studies in Fluorine Chemistry: 13C NMR Investigation of SF5/SO2F Fluorinated Systems." PDXScholar, 1994. https://pdxscholar.library.pdx.edu/open_access_etds/4717.

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The purpose of this thesis was two fold: (i) The synthesis and characterization of SF5 containing dienes. (ii) The characterization of hydro/fluorocarbon compounds containing SF5/S02F groups via their 13C NMR spectra. A new SF5CH2CHBrCH2CF=CF2 was prepared and characterized as a precursor to new dielectric polymers. This new adduct was made from the reaction of pentafluorothio bromide with l,l,2-trifluoro-1,4-pentadiene. A SF5-diene was prepared from the reaction of pentafluorothio chloride with acetylene. This reaction involves a radical addition mechanism. The SF5 group is bonded to the carb

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9

Lehnström, Angelica. "Using 19F-NMR and 1H-NMR for Analysis of Glucocorticosteroids in Creams and Ointments : -Method Development for Screening, Quantification and Discrimination." Thesis, KTH, Skolan för kemivetenskap (CHE), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-40843.

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Topical treatment containing undeclared corticosteroids and illegal topical treatment with corticosteroid content have been seen on the Swedish market. In creams and ointments corticosteroids in the category of glucocorticosteroids are used to reduce inflammatory reactions and itchiness in the skin. If the inflammation is due to bacterial infection or fungus, complementary treatment is necessary. Side effects of corticosteroids are skin reactions and if used in excess suppression of the adrenal gland function. Therefore the Swedish Medical Products Agency has published related warnings to make

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Driega, Alex B. (Alexander Brooke) Carleton University Dissertation Chemistry. "An analysis of factors contributing to isotropic [superscript] 13C shifts in 1,2- Dialkoxybenzene and Cyclohexane derivatives." Ottawa, 1992.

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Books on the topic "1H and 13C nuclear magnetic resonance"

1

Tsang, T. 13C nuclear magnetic resonance in graphite intercalation compounds. Dept. of Physics, Howard University, 1985.

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2

Rahman, Atta-ur. 13C-NMR of natural products. Plenum, 1992.

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Rahman, Atta-ur. 13C-NMR of natural products. Plenum, 1992.

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O'Connell, Timothy P. A 13C-NMR study of tetrahedral adducts with chymotrypsin and subtilisin BPN. University College Dublin, 1997.

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5

J, Pouchert Charles, Behnke Jacqlynn, and Aldrich Chemical Company, eds. The Aldrich library of 13C and 1H FT NMR spectra. Aldrich Chemical Co., 1993.

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Seco, Josi M., Emilio Quiqoa, and Ricardo Riguera. The Assignment of the Absolute Configuration by NMR using Chiral Derivatizing Agents. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780199996803.001.0001.

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Nuclear magnetic resonance spectroscopy (NMR spectroscopy) is a research technique that uses the magnetic properties of atomic nuclei to determine physical and chemical properties of atoms or the molecules in which they are contained. Proton NMR (1H NMR) is a technique that applies NMR spectroscopy specifically to the hydrogen-1 nuclei within the molecules of a substance, in order to determine the structure of that substance's molecules. The use of 1H NMR for the assignment of absolute configuration of organic compounds is a well-established technique. Recent research describes the technique's

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7

Beverly, Boyd, and Texas Engineering Experiment Station, eds. TRC spectral data: 1H nuclear magnetic resonance. Thermodynamics Research Center, Texas Engineering Experiment Station, Texas A & M University System, 1985.

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8

Atta-Ur-Rahman and V. U. Ahmad. 13C-NMR of Natural Products: Volume 1 Monoterpenes and Sesquiterpenes. Springer, 2012.

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9

Kunz, Roland W., and Paul S. Pregosin. 31P and 13C N.M.R. of Transition Metal Phosphine Complexes. Springer, 2012.

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Maemets, Vahur. The 17 0 and 1H nuclear magnetic resonance study of H2O in individual solvents and its charged clusters in aqueous solutions of electrolytes. 1997.

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Book chapters on the topic "1H and 13C nuclear magnetic resonance"

1

Ragavan, Mukundan, and Matthew E. Merritt. "Nuclear Magnetic Resonance Measurement of Metabolic Flux Using 13C and 1H Signals." In Methods in Molecular Biology. Springer New York, 2019. http://dx.doi.org/10.1007/978-1-4939-9488-5_3.

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Ebert, Lawrence B., Kenneth D. Rose, and Michael T. Melchior. "The Chemistry of Internal Combustion Engine Deposit — III. 13C Nuclear Magnetic Resonance Employing 1H Cross-Polarization and Magic Angle Spinning." In Chemistry of Engine Combustion Deposits. Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2469-0_8.

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Simpson, T. J. "13C-NMR in Metabolic Studies." In Nuclear Magnetic Resonance. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82609-2_1.

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Atta-ur-Rahman. "Chemical Shift in 1H-NMR Spectroscopy." In Nuclear Magnetic Resonance. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4612-4894-1_1.

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Visintainer, J., and R. C. Hirst. "13C-NMR Determination of Rubber Content in Guayule Bushes." In Nuclear Magnetic Resonance. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82609-2_7.

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McCain, D. C. "Orientation of Chloroplasts in Leaves by 1H NMR Spectroscopy." In Nuclear Magnetic Resonance. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82609-2_6.

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Gromova, Marina, Armel Guillermo, Pierre-Alain Bayle, and Michel Bardet. "In Situ Studies of Plant Seeds Using 13C or 1H MAS NMR and 1H PFG NMR Approaches." In Modern Magnetic Resonance. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28275-6_18-1.

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Gromova, Marina, Armel Guillermo, Pierre-Alain Bayle, and Michel Bardet. "In Situ Studies of Plant Seeds Using 13C or 1H MAS NMR and 1H PFG NMR Approaches." In Modern Magnetic Resonance. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-28388-3_18.

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Atta-ur-Rahman. "Chemical Shifts and Spin—Spin Couplings in 13C-NMR Spectroscopy." In Nuclear Magnetic Resonance. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4612-4894-1_4.

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Saurí, Josep, and Gary E. Martin. "Chapter 9. Nuclear Magnetic Resonance Experiments Applicable to the Elucidation and Characterization of Alkaloid Structures Part I: Direct 1H–13C Heteronuclear Shift Correlation and Establishing Contiguous Protonated Carbon Spin Systems." In Modern NMR Approaches to the Structure Elucidation of Natural Products : Data Acquisition and Applications to Compound Classes. Royal Society of Chemistry, 2016. http://dx.doi.org/10.1039/9781849734684-00315.

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Conference papers on the topic "1H and 13C nuclear magnetic resonance"

1

Edwards, John C., and Peter J. Choate. "Average Molecular Structure of Gasoline Engine Combustion Chamber Deposits Obtained by Solid-State 13C, 31P, and 1H Nuclear Magnetic Resonance Spectroscopy." In International Fuels & Lubricants Meeting & Exposition. SAE International, 1993. http://dx.doi.org/10.4271/932811.

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Duncan, T. Michael. "The distribution of carbon in boron carbides: 13C nuclear magnetic resonance studies." In AIP Conference Proceedings Volume 140. AIP, 1986. http://dx.doi.org/10.1063/1.35592.

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Zhang, Xiangyun, Jun Li, Yangzhi Mo, and Gan Zhang. "Tow Solid-state 13C Nuclear Magnetic Resonance Methods for Detecting Chemical Structure of Coal Combustion Emissions." In 2016 5th International Conference on Sustainable Energy and Environment Engineering (ICSEEE 2016). Atlantis Press, 2016. http://dx.doi.org/10.2991/icseee-16.2016.106.

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Stringer, Kathleen A., Natalie J. Serkova, Ken Guire, and Theodore J. Standiford. "Biologically Relevant Metabolites Of Sepsis-induced Acute Lung Injury (ALI) Identified By 1H-Nuclear Magnetic Resonance (NMR)-based Spectroscopy." In American Thoracic Society 2010 International Conference, May 14-19, 2010 • New Orleans. American Thoracic Society, 2010. http://dx.doi.org/10.1164/ajrccm-conference.2010.181.1_meetingabstracts.a3776.

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Alves, Geomar Souza, Fábio Luiz Paranhos Costa, Antônio Maia de Jesus Chaves Neto, and Gunar Vingre da Silva Mota. "Análise de RMS de 13C usando GIAO, CSGT e IGAIM: Fatores de escalonamentos de Terpenos." In VIII Simpósio de Estrutura Eletrônica e Dinâmica Molecular. Universidade de Brasília, 2020. http://dx.doi.org/10.21826/viiiseedmol2020153.

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Terpenes are natural products that have several biological and pharmacological properties that are directly related to their chemical structures. In the structural determination of organic molecules, Nuclear Magnetic Resonance (NMR) is used on a large scale. The chemical shift (δ) being the most important parameter. The present study aims to develop and test (the elemol molecule will be used for this purpose) δ scaling factors from 13C to terpenes, based on linear regressions. 10 complex sesquiterpene molecules were selected with the unmistakably determined structures (confirmed with X-ray cry

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Won, Sang Hee, Dalton Carpenter, Stuart Nates, and Frederick L. Dryer. "Derived Cetane Number As Chemical Potential Indicator for Near-Limit Combustion Behaviors in Gas Turbine Applications." In ASME 2018 Power Conference collocated with the ASME 2018 12th International Conference on Energy Sustainability and the ASME 2018 Nuclear Forum. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/power2018-7414.

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The objective of this paper is to elucidate the recently observed strong correlation between derived cetane number (DCN) and lean blow out (LBO) characteristics for both petroleum-derived and alternative jet fuels, as well as their blends. In order to evaluate the variability of fuel physical and chemical properties for petroleum-derived jet fuels, the fuel property database appearing in the DSIC-PQIS 2013 report are rigorously analyzed and compared against fuel-specific data for 17 petroleum-derived and alternative jet fuels and their blends obtained previously in our works. The global combus

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Chai, Rukaun, Yuetian Liu, Qianjun Liu, Xuan He, and Pingtian Fan. "Effect and Mechanism of CO2 Electrochemical Reduction for CCUS-EOR." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206135-ms.

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Abstract Unconventional reservoir plays an increasingly important role in the world energy system, but its recovery is always quite low. Therefore, the economic and effective enhanced oil recovery (EOR) technology is urgently required. Moreover, with the aggravation of greenhouse effect, carbon neutrality has become the human consensus. How to sequestrate CO2 more economically and effectively has aroused wide concerns. Carbon Capture, Utilization and Storage (CCUS)-EOR is a win-win technology, which can not only enhance oil recovery but also increase CO2 sequestration efficiency. However, curr

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Reports on the topic "1H and 13C nuclear magnetic resonance"

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Henderson, Terry J. Nuclear Magnetic Resonance Identification of Military Nerve Agents and Related Compounds by Two-Dimensional 31P-1H Heteronuclear Overhauser Effect Spectroscopy. Defense Technical Information Center, 2010. http://dx.doi.org/10.21236/ada524492.

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Characterization of the International Humic Substances Society standard and reference fulvic and humic acids by solution state carbon-13 (13C) and hydrogen-1 (1H) nuclear magnetic resonance spectrometry. US Geological Survey, 1989. http://dx.doi.org/10.3133/wri894196.

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