Exponential intermolecular dynamics in optical Kerr effect spectroscopy of small-molecule liquids

Exponential intermolecular dynamics in optical Kerr effect spectroscopy of small-molecule liquids

Optical Kerr effect spectroscopy has been employed to study the behavior of six symmetric-top liquids (acetonitrile, acetonitrile-d3, benzene, carbon disulfide, chloroform, and methyl iodide) over a broad range of temperatures. In all of the liquids, an exponential intermolecular response is observe...

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Veröffentlicht in:The Journal of chemical physics 1999-08, Vol.111 (6), p.2686-2694
Hauptverfasser: Loughnane, Brian J., Scodinu, Alessandra, Farrer, Richard A., Fourkas, John T., Mohanty, Udayan
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container_issue 6
container_start_page 2686
container_title The Journal of chemical physics
container_volume 111
creator Loughnane, Brian J.
Scodinu, Alessandra
Farrer, Richard A.
Fourkas, John T.
Mohanty, Udayan
description Optical Kerr effect spectroscopy has been employed to study the behavior of six symmetric-top liquids (acetonitrile, acetonitrile-d3, benzene, carbon disulfide, chloroform, and methyl iodide) over a broad range of temperatures. In all of the liquids, an exponential intermolecular response is observed on a time scale of a few hundreds of femtoseconds. Comparison of the temperature dependence of the time scale of this relaxation with the viscosity and single-molecule and collective orientational times in the liquids suggests that the exponential relaxation arises from motional narrowing.
doi_str_mv 10.1063/1.479544
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title Exponential intermolecular dynamics in optical Kerr effect spectroscopy of small-molecule liquids
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