Internal dynamics in SF6···NH3 observed by broadband rotational spectroscopy

Bittner, Dror M.

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https://hdl.handle.net/2142/79130 Copy

Description

Title

Internal dynamics in SF6···NH3 observed by broadband rotational spectroscopy

Author(s)

Bittner, Dror M.

Contributor(s)

• Legon, Anthony
• Walker, Nick
• Stephens, Susanna L.
• Zaleski, Daniel P.

Issue Date

25-Jun-15

Keyword(s)

Clusters/Complexes

Abstract

The rotational spectra of SF$_{6}$$cdot$$cdot$$cdot$NH$_{3}$ isotopologues have been observed in a pulsed nozzle chirped pulse Fourier-transform microwave spectrometer in the frequency range 6.5-18.5 GHz. The spectrum of SF$_{6}$$cdot$$cdot$$cdot$$^{14}$NH$_{3}$ has been fitted to a Hamiltonian describing a symmetric top complex in which two symmetric top subunits undergo free internal rotation about a common symmetry axis. The distance between the centers of mass of the two monomers was found to be 4.15776(7) AA. Challenges associated with fitting textbar textit{m}textbar =1 transitions (correlating with textit{K} of free NH$_{3}$) for SF$_{6}$$cdot$$cdot$$cdot$$^{14}$ND$_{3}$ imply complicated internal dynamics occurs within the complex.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/79130

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