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The Rotational Spectra, Structure, Internal Dynamics, and Electric Dipole Moment of the Argon–Ketene van der Waals Complex

✍ Scribed by C.W Gillies; J.Z Gillies; S.J Amadon; R.D Suenram; F.J Lovas; H Warner; R Malloy

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
206 KB
Volume
207
Category
Article
ISSN
0022-2852

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✦ Synopsis

Pulsed-beam Fourier transform microwave spectroscopy was used to observe and assign the rotational spectra of the argonketene van der Waals complex. Tunneling of the hydrogen or deuterium atoms splits the a-and b-type rotational transitions of H 2 CCO-Ar, H 2 13 CCO-Ar, H 2 C 13 CO-Ar, and D 2 CCO-Ar into two states. This internal motion appears to be quenched for HDCCO-Ar where only one state is observed. The spectra of all isotopomers were satisfactorily fit to a Watson asymmetric top Hamiltonian which gave A

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