Show simple item record

dc.creatorBailleux, S.en_US
dc.creatorHarada, Kensukeen_US
dc.creatorMizoguchi, A.en_US
dc.creatorTanaka, Keiichien_US
dc.date.accessioned2006-06-15T19:18:06Z
dc.date.available2006-06-15T19:18:06Z
dc.date.issued1999en_US
dc.identifier1999-RG-14en_US
dc.identifier.urihttp://hdl.handle.net/1811/19376
dc.description$^{a}$ K. Uemura. A. Hara, and K. Tanaka, J. Chem. Phys., 104, 9747 (1996). $^{b}$ M. Shirasaka, and K. Tanaka, J. Mol. Spec., 185, 189 (1997).en_US
dc.descriptionAuthor Institution: Institute for Molecular Science (IMS)en_US
dc.description.abstractIn order to understand the potential energy surface of the very floppy Ar-HCN $cluster^{a}$, it is essential to observe the van der Waals vibrational bands of the deuterated species, $Ar-DCN^{b}$. We have applied the millimeter-wave absorption spectroscopy combined with the pulsed-jet expansion technique to the measurement of ro-vibrational transitions of the $\Sigma_{1}\leftarrow \Sigma_{0}$ and $\Pi_{1}\leftarrow\Sigma_{0}$ subbands of Ar-DCN between 182 and 294 GHz. We found that diluting DCN (2\%) in a mixture of Ar and Ne (up to 50\%) lead to a 5 times greater signal-to-noise ration compared to DCN diluted in pure Ar. Moreover, Ne also contributes to reducing the line width (250 kHz FWHM). In total, 53 rovibrational transitions split into hyperfine components due to the Nitrogen nucleus were observed, leading to an accurate determination of the molecular parameters. The subband origins are determined to be 189017.3969(98) and 195550.745(18), and the rotational constants are $B = 1926.8792(24)$ and $B = 1967.8744(20)$ in the $\Sigma_{1}$ and $II_{1}$ bands, respectively (all constants in MHz). Other parameters also include the quadrupole coupling constants, the Coriolis coupling constans between the $\Sigma_{1}$ and $II_{1}$ bending bands. The intensities of the P- and R-branch of these two bands are strongly affected by the Coriolis interaction.en_US
dc.format.extent151138 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleOBSERVATION OF THE VAN DER WAALS BENDING BANDS OF THE Ar-DCN CLUSTER BY MILLIMETER-WAVE SPECTROSCOPY IN SUPERSONIC JET EXPANSIONen_US
dc.typearticleen_US


Files in this item

Thumbnail

Items in Knowledge Bank are protected by copyright, with all rights reserved, unless otherwise indicated.

This item appears in the following Collection(s)

Show simple item record