Variation of chemical shielding with intermolecular interactions and rovibrational motion. I. 19F nuclei in BF3, CF4, SiF4, and SF6
- 15 September 1977
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 67 (6) , 2771-2774
- https://doi.org/10.1063/1.435192
Abstract
The chemical shifts due to rotational and vibrational motion in CF4, SiF4, BF3, and SF6 are obtained by extrapolation of 19F resonance frequencies to zero density. The second virial coefficients of chemical shielding, σ1(T), are obtained at the same time from the slopes. It is found that the σ1 values for these molecules do not depend on temperature nearly as strongly as was previously reported.Keywords
This publication has 5 references indexed in Scilit:
- Absolute temperature dependence of chemical shielding of some reference nucleiJournal of Magnetic Resonance (1969), 1975
- Temperature and density dependence of 129Xe chemical shift in rare gas mixturesThe Journal of Chemical Physics, 1975
- Proton magnetic shielding studies of pure, gaseous hydrogen bromideJournal of Magnetic Resonance (1969), 1973
- Proton shielding function for hydrogen chlorideMolecular Physics, 1972
- Medium Effects in NMR. VIII. Temperature and Pressure Dependence of 19F Chemical Shifts in Pure CF4, SiF4, and SF6 Gases and in Gaseous MixturesThe Journal of Chemical Physics, 1971