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High‐spin molecular rotation spectra are surprisingly simple

JUL 01, 1984

DOI: 10.1063/1.2916316

In the past few years enormous experimental and theoretical progress has been made toward the understanding of the vibration–rotation spectra of polyatomic molecules. With a laser spectrometer of unprecedented size and complexity, Christian Bordé and his colleagues at the Université Paris‐Nord are now able to resolve hyperfine and “superfine” splittings of less than one part in 1010 over a considerable infrared wavelength range in the spectra of such molecules as sulfur hexafluoride. SF6 is particularly interesting not only because its highly symmetrical configuration produces astonishing spectral patterns that have given impetus to a new level of theoretical understanding; it also serves as a stand‐in for UF6. Much of the support for SF6 spectroscopy has been impelled by the practical interest in laser separation of uranium isotopes.

This Content Appeared In
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Volume 37, Number 7

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