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Showing 1 to 20 of 93 for “"carbon-13"”.

  1. Part I. Carbon-13 and Carbon-14 Biosynthetic Study of Geldanamycin. Part Ii. Carbon-13 Nuclear Magnetic Resonance Study of Phenazines. Part Iii. Carbon-13 Nuclear Magnetic Resonance Study of Pactamycin

    Haber, ArthurUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-13T20:10:11Z (GMT). No. of bitstreams: 1 7804012.pdf: 10622405 bytes, checksum: 90f99bcf7d45ea611612f521ab6e463d (MD5) Previous issue date: 1977

    uiuc Repository record

  2. Relative Isotope Effects of Carbon-13 and Carbon-14

    Promislow, Albert LouisUniversity of Illinois at Urbana-Champaign2014

    … 1 0011527.pdf: 5248951 bytes, checksum: 448c0e5136cd3c69f179ebfe3ef8c2e6 (MD5) Previous issue date: 1955

    uiuc Repository record

  3. The analysis of rocket propellants by carbon-13 NMR

    Ku, Michael Mei-kungVirginia Polytechnic Institute and State University1977

    … molecular weight of 3000, were analyzed with carbon-13 NMR. The relative abundance of the three types of structural units (cis-1,4, trans-1,4, and vinylic-1,2 units) was quantitatively determined. The distribution of the three structural units was found to be completely random. Branching in …

    vt Repository record

  4. Carbon-13 magic angle spinning NMR studies of myelin membranes

    Husted Altenberg, CynthiaUniversity of Illinois at Urbana-Champaign2011

    … high-field (11.7 T), high-resolution $\sp{13}$C solid state ""magic angle"" sample spinning nuclear magnetic resonance (MAS NMR) spectra of a variety of model phospholipids, sphingolipids, myelin and white matter samples, resolving and assigning over 60 resonances in the spectra of human …

    uiuc Repository record

  5. Hyperpolarized Carbon-13 Magnetic Resonance Measurements of Tissue Perfusion and Metabolism

    Michel, Keith, <p>0000-0002-4330-6881</p>2021

    … vivo </em>in rodents through imaging of HP <sup>13</sup>C urea. Using the simulation and imaging infrastructure developed in this work, established methods for encoding HP chemical signals were compared quantitatively. Lastly, our method was adapted for imaging of …

    uthsc Repository record

  6. Carbon-13 NMR Relaxation Study of Motional Dynamics in Complex Liquids

    Kim, Yoo JoongUniversity of Illinois at Urbana-Champaign2015

    … compounds has been investigated using $\sp{13}$C NMR relaxation measurements. Natural abundance $\sp{13}$C NMR spin-lattice relaxation times (T$\sb1),$ spin-spin relaxation times (T$\sb2),$ and nuclear Overhauser effects of individual carbon nuclei in the complex phthalate liquids were …

    uiuc Repository record

  7. Extended Hueckel Calculations of Carbon-13-Hydrogen Spin-Spin Coupling Constants

    Dugre, Donald HarveyUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-09T17:36:02Z (GMT). No. of bitstreams: 1 6812109.pdf: 3560021 bytes, checksum: 148161ccdd973c23ace38ce051993bf5 (MD5) Previous issue date: 1968

    uiuc Repository record

  8. High pressure carbon-13 NMR studies of dynamics in disordered systems

    Grandinetti, Philip JohnUniversity of Illinois at Urbana-Champaign2011

    … pressure high resolution $\sp1$H-decoupled $\sp{13}$C NMR spectroscopy is described. The design of an pulsed NMR spectrometer with increased sensitivity and versatility is presented and used in the design and development of a high pressure high resolution double-resonance NMR probe. This new …

    uiuc Repository record

  9. XPS and Carbon-13 NMR spectroscopic analysis of composite rocket propellants

    Kauffman, Elroy WayneVirginia Polytechnic Institute and State University1983

    In this study the applicability of Carbon-13 NMR and XPS to the detection of chemical changes in a solid composite rocket propellant was studied. Storage at elevated temperatures was used to simulate the propellant ageing process. In the XPS analysis, changes in the sources for the N(1s) and Cl(2p) …

    vt Repository record

  10. Infrared and circular dichroism studies of carbon-13 isotopically labeled peptide models.

    Rong. Huang (8000372)2007

    Infrared and circular dichroism studies of carbon-13 isotopically labeled peptide models.

    uic

  11. Barrier Curvature and Medium Interaction Effects on Carbon-13 Kinetic Isotope Effects

    Keller, Joseph HerbertUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-10T23:01:53Z (GMT). No. of bitstreams: 1 7414565.pdf: 4358330 bytes, checksum: cccea4c400ff7e41c4595092a682c6d1 (MD5) Previous issue date: 1974

    uiuc Repository record

  12. Intermolecular Carbon-13 Kinetic Isotope Effect in the Thermal Structuralisomerization of Cyclopropane

    Sims, Leslie BerlUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-09T17:35:48Z (GMT). No. of bitstreams: 1 6711922.pdf: 6434035 bytes, checksum: 0833c7069c2960fd1a7276501a99f19b (MD5) Previous issue date: 1967

    uiuc Repository record

  13. Mass Spectral and Nuclear Magnetic Resonance Studies of Compounds Labeledwith Carbon-13

    Buchholz, Allan CliffordUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-09T17:35:49Z (GMT). No. of bitstreams: 1 6801714.pdf: 5783963 bytes, checksum: 26c59445097fd186b66b270e0a222ee6 (MD5) Previous issue date: 1967

    uiuc Repository record

  14. The metabolism of isobutyric acid labeled with carbon-13 and carbon-14

    Wiggans, Donald ShermanUniversity of Illinois at Urbana-Champaign1952

    uiuc Repository record

  15. The Metabolism of DL-Valine Labeled with Carbon-13 and Carbon-14

    Minthorn, Martin Lloyd, Jr.University of Illinois at Urbana-Champaign1953

    uiuc Repository record

  16. A carbon-13 nuclear magnetic resonance study of a series of cyclohexanol amines

    Slovin, Eliot MarkRice University1976

    A carbon-13 nuclear magnetic resonance spectral investigation of the monosubstituted-butylcyclohexyl alcohols, amines, and ammonium salts was undertaken and the resultant correlations were extended to a series of eight b-butylcyclohexanol amines and their hydrochloride salts. Among the effects …

    rice Repository record

  17. Molecular Orbital Calculations Applied to Donor Systems and Carbon-13-Proton Coupling Constants

    Middaugh, Richard LoweUniversity of Illinois at Urbana-Champaign2014

    … (GMT). No. of bitstreams: 1 6507137.pdf: 2607847 bytes, checksum: 65bc19494064aefdba83358963ef4bab (MD5) Previous issue date: 1965

    uiuc Repository record

  18. Proton-coupled carbon-13 sample spinning NMR studies of macromolecules and ordered systems

    Chung, JohnUniversity of Illinois at Urbana-Champaign2011

    … macroscopic orientational ordering behavior, by Carbon-13 ($\sp{13}$C) nuclear magnetic resonance (NMR) spectroscopy. We find that under ""magic angle"" spinning (MAS) these systems display high resolution due to extensive motions, and therefore traditional proton-decoupling is not necessary. In …

    uiuc Repository record

  19. Development of Nitrogen-15- and Carbon-13-Labeled Biochemical Probes for Hyperpolarized Metabolic Imaging

    Suh, Eul Hyun2021

    … are misnumbered as pages 100-125, and pages 130-134 are misnumbered as pages 125-129.

    utswmed Repository record

  20. Prediction of proton and carbon-13 NMR chemical shifts using chemical shift prediction programs

    Dyosi, ZolaniDepartment of Chemistry2002

    … 1H chemical shifts for these compounds. 1H and 13C_spectra for alkaloids were also collected using a Varian spectrometer and also interpreted with the use of multi-pulse techniques. CHARGE-V7, ACD-V4 (1H and 13C) predictor programs together with SpecInfo-V3.2 (1H and 13C) predictor program were …

    cape-town Repository record

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