Temperature dependence of the Kerr effect of dimethyl ether
- 1 January 1981
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
- Vol. 77 (9) , 1547-1551
- https://doi.org/10.1039/f29817701547
Abstract
Measurements of the Kerr effect (electric birefringence) are reported for gaseous dimethyl ether over the temperature range 259–334 K. The dominant contribution is that in µ2(α33–α)(kT)–2; α33–α is the difference between the optical polarizability in the direction of the dipole and the mean polarizability at 632.8 nm and is obtained as (–0.53 ± 0.12)× 10–40 C2 m2 J–1. The principal polarizabilities at 632.8 nm are α11=(5.46 ± 0.14)× 10–40 C2 m2 J–1, α22=(6.69 ± 0.17)× 10–40 C2 m2 J–1 and α33=(5.28 ± 0.13)× 10–40 C2 m2 J–1. The first hyperpolarizability βK contributes –16% of the Kerr constant at 298 K.Keywords
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