- Analysis of the hot band of stannane 116SnH4 in the 600-850 cm-1 range
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The FTIR spectrum of monoisotopic stannane 116SnH4 has been recorded in the 600-850 cm-1range, with the Bruker 120 HR interferometer at Giessen, Germany. The resolution was 2.1 × 10 -3 cm1-. The analysis of infrared transitions in this region enabled Brunet et al. to assign many lines to the bending dyad ν 2/ν4,. However, several lines in this spectrum were found to be unassigned. In a recent work, we have analysed the infrared spectrum of stannane in the bending triad region at 1400 cm-1. The results obtained enabled us to assign directly, for the spectrum in the region 600-850 cm-1, 163 of the observed transitions to the hot band {bending triad} minus {bending dyad} up to J = 9. These transitions were combined to the infrared data corresponding to the bending triad (2ν 2, ν2 + ν4, 2ν4), to refine a set of Hamiltonian parameters for the two bands 2ν2 and (ν2 + ν4).
- Tabyaoui,Pierre,Bürger
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- Analysis of the Fourier transform infrared spectrum of the stannane species 116SnH4 in the region 1270-1600 cm-1
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Monoisotopic stannane 116SnH4 has been investigated at room temperature in the 600-850 cm-1 and 1270-1600 cm-1 regions by FTIR spectroscopy with an effective resolution of 2.1 × 10-3 cm-1 and 2.0 × 10-3 cm-1 respectively. The simultaneous analysis of infrared transitions of both the bending triad and the hot band {bending triad} minus {bending dyad}, enabled us to determine 26 parameters for the (2v2) band and the combination band (v2 + v4). The standard deviation of the fit was about 1.5 × 10-3 cm-1. In this analysis, we have used, for the bending triad, a Hamiltonian developed to the fourth order of approximation. 163 observed transitions for the hot band and most observed transitions for the bending triad spectrum, were assigned to the two bands 2v2 and (v2 + v4), up to J = 9. In the fit of the Hamiltonian parameters, we have used for the ground state and for the fundamentals v2 and v4, the parameters determined by Brunet, Pierre, and Bu?rger [J. Mol. Spectrosc. 140, 237 (1990)]. EDP Sciences, Societa? Italiana di Fisica, Springer-Verlag 2004.
- Tabyaoui,Pierre,Bürger
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- Overtone Spectrum of Stannane: Experiment and Theoretical Analysis
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The infrared spectrum of monoisotopic species of stannane, 116SnH4, has been measured with medium resolution in the region 1900-6000 cm-1.The bands observed include the infrared-active stretching fundamental band and the first and second stretc
- Halonen, Marjo,Halonen, Lauri,Buerger, Hans,Sommer, Silvia
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