Abstract
ABSTRACT The absorption spectra of the D 2 H monomer in 3600 4200 cm -1 were recorded using Fourier Transform spectrometer FS-125M at room temperature and pressure of 15 and 33 mbar with spectral resolution of 0.03 cm -1 using 2.5 cm long absorption cell. Strong unblended D 2 O lines lying on the wing of the H 2 O stretching band were used to determine the line broadening parameters. They were determined from the line profile by Program VxpProfile. The differences between fitted line profiles and experimental ones do not exceed 2%. Registered D 2 O lines belong to (011) - (000) and (110) - (000) bands of the second triad. Self-broadening coefficients vary from 0.27 cm -1 /atm to 0.445 cm /atm and they exceed 3 times the D 2 O-N 2 line broadening coefficients in the v 3 . Calculations of self-broadening coefficients of the D 2 O lines were performed using semiempirical method based on the impact theory of broadening and included the correction factors. The calculated results well agree with experimental data. Keywords: confined water; Fourier spectrometer; absorption spectrum; spectral line profiles; line width and shift coefficients.
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