Absolute intensity measurements in the ν3 band of carbon disulphide


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The aim of this paper is to determine with accuracy the band strength of the strong nu(3) fundamental band of carbon disulphide CS2. By diode-laser spectroscopy, we have measured line by line the intensities for the (CS2)-C-12-S-32 form by the equivalent width method and by the line profile fitting method. To confirm our results, we have also measured 30 lines for the (CS2)-C-13-S-32 isotopic species using a sample Of CS2 in natural abundance. We have obtained for the band strength S-v(o) = 1417 cm(-2) atm(-1) at 296 K and this value is in good agreement with the values from the literature.
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equivalent width
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