Proton magnetic resonance of ethane in the liquid and gaseous states
- 1 January 1971
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 21 (3), 535-547
- https://doi.org/10.1080/00268977100101691
Abstract
The proton chemical shift of ethane is reported, covering for gaseous ethane the density range 0 to 0·5 g cm-3 and the temperature range 0 to 110°C, and for liquid ethane from the critical temperature down to -55°C. The results are discussed in terms of the van der Waals interaction term σ w , using a virial expansion including both binary and ternary collisions. A parallel is drawn between the medium shifts and the equation of state for non-ideal gases. Some comments are made regarding (i) the uniqueness of the parameter B for protons in a C-H bond in non-polar molecules, (ii) the neighbour anisotropy contribution σ a in molecules such as ethane and ethylene, and (iii) the van der Waals gas-to-liquid medium shift, and its temperature dependence, in larger molecules.Keywords
This publication has 14 references indexed in Scilit:
- New model for the neighbor anisotropy nuclear magnetic resonance solvent effect. Nonpolar solutes in benzeneJournal of the American Chemical Society, 1970
- Proton magnetic shielding of a pair of interacting methane moleculesMolecular Physics, 1969
- Calibration of the methanol and glycol nuclear magnetic resonance thermometers with a static thermistor probeAnalytical Chemistry, 1968
- Medium effects in nuclear magnetic resonance. V. Liquids consisting of nonpolar, magnetically isotropic moleculesThe Journal of Physical Chemistry, 1968
- Medium Effects in Nuclear Magnetic Resonance. IV. A Refined Theory for Nonpolar GasesThe Journal of Chemical Physics, 1965
- Medium Effects in Proton Magnetic Resonance. I. GasesThe Journal of Chemical Physics, 1962
- Density versus Chemical Shift in NMR SpectraThe Journal of Chemical Physics, 1961
- DIAMAGNETIC SUSCEPTIBILITIES OF SIMPLE HYDROCARBONS AND VOLATILE HYDRIDESThe Journal of Physical Chemistry, 1960
- Nuclear magnetic shielding of a hydrogen atom in an electric fieldMolecular Physics, 1958
- Electromagnetic properties of compressed gasesDiscussions of the Faraday Society, 1956