Vol. 26, issue 07, article # 1

Abstract:

The procedure of the selection of halfwidths of absorption spectral lines measured in different works for intermolecular potential determination is proposed. The procedure is based on the analytical model for half-widths. Two examples connected with spectral lines of 2 ν₁ + ν₂ + ν₃ vibrational band of H₂O molecule and ν₂ band of H₂S molecule broadened by helium pressure are discussed.

Keywords:

helium broadening, selection and comparison of experimental data, H₂O , H₂S

References:

1. Starikov V.I., Lavrent'eva N.N. Stolknovitel'noe ushirenie spektral'nyh linij pogloshhenija molekul atmosfernyh gazov / Red. K.M. Firsova. Tomsk: Izd-vo IAO SO RAN, 2006. 303 p.
2. Buldyreva J., Lavrent’eva N.N., Starikov V.I. Collisional Line Broadening and Shifting of Atmospheric Gase. A Practical Guide for Line Shape Modeling by Current Semi-Classical Approaches. London: Imperical College Press, 2010. 292 p.
3. Girshfelder Dzh.O., Kurtis Ch.F., Bred R. Molekuljarnaja teorija gazov i zhidkostej. M.: Izdatelstvo inostr. literatury, 1961. 929 p.
4. Starikov V.I. Noble gas broadening calculation for fundamental bands of H₂S // J. Computational Methods in Sciences and Engineering. 2010. V. 10, N 3–6. P. 599–608.
5. Starikov V.I. K raschetu temperaturnoj zavisimosti kojefficientov ushirenija vrashhatel'nyh linij pogloshhenija molekuly H₂S davleniem gelija // Optika atmosf. i okeana. 2012. V. 25, N 4. pp. 301–306.
6. Petrova T.M., Solodov A.M., Starikov V.I., Solodov A.A. Intermolecular interaction potential of H₂O–He system // J. Quant. Spectrosc. and Radiat. Transfer. 2013. (In print).
7. Starikov V.I., Protasevich A.E. Analiticheskoe predstavlenie dlja kojefficientov samoushirenija vodjanogo para // Optika i spektroskopija. 2005. V. 98, N 3. P. 368–373.
8. Starikov V.I. Analytical representation of half-width for molecular ro-vibrational lines in the case of dipole-dipole and dipole-quadrupole interactions // Mol. Phys. 2009. V. 107. P. 2227–2236.
9. Starikov V.I. Analiticheskoe predstavlenie kojefficientov ushirenija kolebatel'no-vrashhatel'nyh linij pogloshhenija linejnyh molekul // Optika i spektroskopija. 2011. V. 110, N 2. P. 199–210.
10. Lucchesini A., Gozzini S., Gabbanini C. Water vapor overtones pressure line broadening and shifting measurements // Eur. Phys. J. D. 2000. V. 8. P. 223–226.
11. Poddar P., Mitra S., Hossain Md.M., Biswas D., Ghosh P.N., Ray B. Diode laser spectroscopy of He, N2 and air broadened water vapour transitions belonging to the (2ν₁ + ν₂ + ν₃) overtone band // Mol. Phys. 2010. V. 108, N 15. P. 1957–1964.
12. Solodov A.M., Starikov V.I. Ushirenie i sdvigi centrov linij molekuly vodjanogo para davleniem gelija v polose ν₂ + ν₃ // Optika i spektroskopija. 2008. V. 105, N 12. P. 19–26.
13. Solodov A.M., Starikov V.I. Helium-induced Half-Widths and Line Shifts of Water Vapor Transitions of the n1 + n2 and n2 + n3 Bands // Mol. Phys. 2009. V. 207, iss. 1. P. 43–51.
14. Petrova T.M., Solodov A.M., Starikov V.I., Solodov A.A. Measurements and calculations of He-broadening and shifting parameters of the water vapor transitions of the ν₁ + ν₂ + ν₃ band // Mol. Phys. 2012. V. 110, iss. 14. P. 1493–1503.
15. Waschull J., Kuhnemann F., Sumpf B. Self-, air-, and helium-broadening in the ν₂ band of H₂S // J. Mol. Spectrosc. 1994. V. 165, N 2. P. 150–158.
16. Sumpf B., Meusel I., Kronfeldt H.-D. Noble gas broadening in fundamental bands of H₂S // J. Mol. Spectrosc. 1997. V. 184, N 1. P. 51–55.
17. Kissel A., Sumpf B., Kronfeldt H.-D., Tichomirov B.A., Ponomarev Yu.N. Noble gas induced line-shift and line-broadening in the ν₂ band of H₂S // J. Mol. Structure. 2000. V. 517–518. P. 477–492.
18. Starikov V.I. Ushirenie kolebatel'no-vrashhatel'nyh linij molekuly H₂S davleniem odnoatomnyh gazov // Optika i spektroskopija. 2013. (In print).