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Experimental determination of the OH-Ar stretching potential

✍ Scribed by Mary T. Berry; Mitchell R. Brustein; Marsha I. Lester

Publisher: Elsevier Science
Year: 1988
Tongue: English
Weight: 575 KB
Volume: 153
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(88)80125-8

No coin nor oath required. For personal study only.

✦ Synopsis

Interaction potentials between Ar (IS,) and hydroxyl radicals in the A%+ and X 'Hi,, states are constructed as a function of OH (center-of-mass)

to Ar separation distance. The intermolecular potentials are derived from spectral analysis of the OH-Ar fluorescence excimtion spectrum observed about the OH A *Z+ (11' =0)-X 2n,,z(~" = 0) transition. Rotational analysis of features ascribed to an OH-Ar stretching mode in the excited state yields an OH-Ar sepal-ation distance of < 2.9 A at the equilibrium position of the cxcitcd state potential and an average OH-Ar van der Waals bond length of 3.6 A at the zero-point lcvcl of the ground state.

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