Observation of the Weakly Bound (HCl)_2H_2O Cluster by Chirped-Pulse Ftmw Spectroscopy

Details Observation of the Weakly Bound (HCl)_2H_2O Cluster by Chirped-Pulse Ftmw Spectroscopy Observation of the Weakly Bound (HCl)_2H_2O Cluster by Chirped-Pulse Ftmw Spectroscopy

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010mss..confeth03k&link_type=abstract

"International Symposium On Molecular Spectroscopy, 65th Meeting, Held 21-25 June, 2010 at Ohio State University. http://molspec

Physics

Microwave (Rotational)

Scientific paper

Investigation of small cluster formation in the H_2O + HCl binary system is expected to provide stepwise insight into the chemically fundamental process of ionization of the HCl molecule towards hydrochloric acid. Previous studies of the rotational spectra of this system in supersonic expansion resulted in detailed characterization of H_2O\cdotsHCl and (H_2O)_2HCl clusters, and in identification of the (H_2O\cdotsHCl)\cdotsAr cluster. Many unassigned weak lines were observed but further progress was hindered by the multiple alternatives to assignment, particularly in the case of the deuterated mixture.
Application of the broadband, chirped-pulse FTMW technique reinvigorated the investigation of this system. The assignment of (H_2O\cdotsHCl)\cdotsAr was completed and it was found that the strongest unassigned cluster was (HCl)_2H_2O. Identification of this cluster is confirmed by successfully fitted nuclear quadrupole hyperfine structure from the two chlorine nuclei, and observation of spectra for several isotopic species. Detailed results concerning the spectroscopy and properties of (HCl)_2H_2O are presented.
Z. Kisiel, B. A. Pietrewicz, P. W. Fowler, A. C. Legon, E. Steiner, J. Phys. Chem. A 104, 6970 (2000).
Z. Kisiel, E. Bialkowska-Jaworska, L. Pszczólkowski, A. Milet, C. Struniewicz, R. Moszynski, J. Sadlej, J. Chem. Phys. 112, 5767 (2000).
Z. Kisiel, L. Pszczólkowski, E. Bialkowska-Jaworska, O. Desyatnyk, M. J. Nowak, WH11, 59th International Symposium on Molecular Spectroscopy (2004).

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