25 January 2000 Vibrational-resonance self-broadening of IR absorption bands in gaseous fluorides
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Proceedings Volume 4063, 13th Symposium and School on High-Resolution Molecular Spectroscopy; (2000) https://doi.org/10.1117/12.375385
Event: 13th Symposium and School on High-Resolution Molecular Spectroscopy, 1999, Tomsk, Russian Federation
Abstract
A new spectroscopic effect of strong self-action was observed for the first time in molecular gases for vibrational transitions to combined states, in which the strongly IR active v3 mode is involved. Transformations of the v3, v1 + v3, v2 + v4 band shapes of 32SF6, 34SF6, 12CF4, 13CF4, 14NF3 upon variation of density (T equals 293 K) were studied for pure gas (p < 70 Amagat) and its dilute mixtures with Ar, Kr, Xe (pmixt < 150 Amagat). A strong linear dependence of the second spectral moment M2 on density for v3 and v1 + v3 bands in pure gases was observed, whereas no effect was found in dilute mixtures and for v2 + v4 band in pure gases.
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Andrei P. Burtsev, Ivan M. Kislyakov, Tatyana D. Kolomiitsova, "Vibrational-resonance self-broadening of IR absorption bands in gaseous fluorides", Proc. SPIE 4063, 13th Symposium and School on High-Resolution Molecular Spectroscopy, (25 January 2000); doi: 10.1117/12.375385; https://doi.org/10.1117/12.375385
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