ELECTRON SPIN RESONANCE OF THE MONODEUTEROTROPENYL RADICAL. EFFECT OF THE DEUTERIUM SUBSTITUENT.
作者： Walter V. Volland , Gershon Vincow
DOI: 10.1063/1.1668261
关键词: Hyperfine structure 、 Deuterium 、 Proton 、 Kinetic isotope effect 、 Spectroscopy 、 Nuclear magnetic resonance 、 Atomic physics 、 Electron 、 Electron paramagnetic resonance 、 Spectral line 、 Chemistry
摘要: Monodeuterotropenyl radical, C7H6D·, is generated by thermal cleavage of liquid x,x′‐dideuterobitropenyl (x,x′‐dideutero‐bi‐2,4,6‐cycloheptatrien‐1‐yl) and investigated means electron spin resonance (ESR) spectroscopy. The major goal this work an assessment the effect deuterium substituent on vibronic near degeneracy radical. ESR spectrum C7H6D· appears to correspond hyperfine interaction with six equivalent protons one deuteron. expected inequivalence proton splittings less than linewidth. From a detailed analysis magnitude linewidth, upper limit 25 cal/mole estimated for energy separation between nearly degenerate levels C7H6D·. This estimate compared splitting C6H5D− correlated prediction integral perturbation model [J. Am. Chem. Soc. 87 5260 (1965)]. deuteron a...
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sci-hub.se 参考文章(20)
James S. Hyde, Harmon W. Brown, EPR Study of Tetracene Positive Ion Journal of Chemical Physics. ,vol. 37, pp. 368- 378 ,(1962) , 10.1063/1.1701328
Ellery W. Stone, August H. Maki, ESR Study of Rotational Isomerism in Substituted Benzaldehyde Anions The Journal of Chemical Physics. ,vol. 38, pp. 1999- 2011 ,(1963) , 10.1063/1.1733909
Lawrence C. Snyder, Terry Amos, Unrestricted Hartree—Fock Calculations. II. Spin Properties of Pi‐Electron Radicals Journal of Chemical Physics. ,vol. 42, pp. 3670- 3683 ,(1965) , 10.1063/1.1695779
Ronald G. Lawler, James R. Bolton, Martin Karplus, George K. Fraenkel, Deuterium Isotope Effects in the Electron Spin Resonance Spectra of Naphthalene Negative Ions The Journal of Chemical Physics. ,vol. 47, pp. 2149- 2165 ,(1967) , 10.1063/1.1712248
M. T. Jones, A. Cairncross, D. W. Wiley, Anomalous Deuterium Hyperfine Splittings The Journal of Chemical Physics. ,vol. 43, pp. 3403- 3404 ,(1965) , 10.1063/1.1726411
Daniel Kivelson, Theory of ESR Linewidths for Benzene Negative Ion Radicals The Journal of Chemical Physics. ,vol. 45, pp. 751- 752 ,(1966) , 10.1063/1.1727636
George W. Smith, Modulation Effects in Magnetic Resonance: Widths and Amplitudes for Lorentzian and Gaussian Lines Journal of Applied Physics. ,vol. 35, pp. 1217- 1221 ,(1964) , 10.1063/1.1713596
Jack H. Freed, ESR Hyperfine Linewidths from Benzene Anion Distortions The Journal of Chemical Physics. ,vol. 43, pp. 1427- 1428 ,(1965) , 10.1063/1.1696941
M. R. Das, George K. Fraenkel, Effects of Temperature and Deuterium Substitution on the Electron Spin Resonance Spectra of Free Radicals The Journal of Chemical Physics. ,vol. 42, pp. 792- 794 ,(1965) , 10.1063/1.1696012
Gershon Vincow, M. Lee Morrell, Frank R. Hunter, Hyp J. Dauben, Electron Spin Resonance of the Mono‐tert‐butyltropenyl and Tri‐tert‐butyltropenyl Radicals: A Study of Vibronic Near Degeneracy Journal of Chemical Physics. ,vol. 48, pp. 2876- 2894 ,(1968) , 10.1063/1.1669547