Temperature Dependence of Spin—Spin Splitting in the Hindered Rotator CHCl2–CF2Cl
- 1 October 1962
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 37 (7) , 1466-1467
- https://doi.org/10.1063/1.1733307
Abstract
The effective H1–F19 spin coupling in CHCl2–CClF2 changes from 5.40 cps at —40°C to 5.60 cps at +100°C. This variation has been analyzed to obtain the difference in potential energy between the two energetically distinct staggered rotational isomers. The result is that the isomer possessing a plane of symmetry is either 2.0 kcal/mole more stable or 1.8 kcal/mole less stable than the other pair. The consequences of this result for the theory of spin—spin splitting are briefly discussed.Keywords
This publication has 9 references indexed in Scilit:
- A PROTON MAGNETIC RESONANCE INVESTIGATION OF ROTATIONAL ISOMERISM IN 1,1,2,2-TETRACHLORO-1-FLUOROETHANECanadian Journal of Chemistry, 1961
- Electron Coupling of Nuclear Spins. IV. Temperature Dependence in Substituted EthanesThe Journal of Chemical Physics, 1960
- Nuclear Resonance Spectra of Rapidly Interconverting Rotational IsomersThe Journal of Chemical Physics, 1957
- THE ANALYSIS OF NUCLEAR MAGNETIC RESONANCE SPECTRA: II. TWO PAIRS OF TWO EQUIVALENT NUCLEICanadian Journal of Chemistry, 1957
- NUCLEAR MAGNETIC RESONANCE SPECTRA. HINDERED ROTATION AND MOLECULAR ASYMMETRY1Journal of the American Chemical Society, 1957
- Restricted Rotation in Substituted Ethanes as Evidenced by Nuclear Magnetic ResonanceJournal of the American Chemical Society, 1957
- Hindered rotation and nonequivalent nuclear spin couplingsJournal of Molecular Spectroscopy, 1957
- Measurement of Small Nuclear Spin-Spin Coupling ConstantsThe Journal of Chemical Physics, 1956
- Fine Splittings in the Nuclear Magnetic Resonance Spectra of Alkyl DerivativesThe Journal of Chemical Physics, 1956