University of Illinois Urbana-Champaign

Infrared and microwave spectra of ne-water complex

Xu, Yunjie

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2238.pdf
821346.pptx

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https://hdl.handle.net/2142/91515

Description

Title
Infrared and microwave spectra of ne-water complex
Author(s)
Xu, Yunjie
Contributor(s)
  • Li, Hui
  • Hou, Dan
  • Thomas, Javix
  • Liu, Xunchen
Issue Date
2016-06-20
Keyword(s)
Spectroscopy of Large Amplitude Motions
Date of Ingest
2017-01-26T21:37:48Z
Abstract
The binary complex of rare gas atom and water is an ideal model to study the anisotropic potential energy surface of van der Waals interaction and the large amplitude motion. Although Xe-H$_2$O, Kr-H$_2$O, Ar-H$_2$O, Ar-D$_2$O and even Ne-D$_2$O complexes were studied by microwave or high resolution infrared spectroscopy, the lighter Ne-H$_2$O complex has remained unidentified. In this talk, we will present the theoretical and experimental investigation of the Ne-H$_2$O complex. A four-dimension PES for H$_2$O-Ne which only depended on the intramolecular (Q2) normal-mode coordinate of H2O monomer was calculated in this work to determine the rovibrational energy levels and mid-infrared transitions. Aided with the calculated transitions, we were able to assigned the high resolution mid-infrared spectra of both $^{20}$Ne-H$_2$O and $^{22}$Ne-H$_2$O complexes that are generated with a pulsed supersonic molecular beam in a multipass direct absorption spectrometer equiped with an external cavity quantum cascade laser at 6 $\mu$m. Several bands of both para and ortho Ne-H2O were assigned and fitted using the Hamiltonian with strong Coriolis and angular-radical coupling terms. The predicted groud state energy levels are then confirmed by the J=1-0 and J=2-1 transitions measurement using a cavity based Fourier transform microwave spectrometer.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
En
Permalink
http://hdl.handle.net/2142/91515
Copyright and License Information
Copyright 2016 by the authors

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Abstracts & Presentations - 2016 International Symposium on Molecular Spectroscopy PRIMARY