Line positions and intensities for the 2ν2, ν1, and ν3 bands of H218O

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Abstract
A very good fit of 434 line intensities of the 2ν2, ν1 and ν3 bands of H218O has been performed leading to the determination of the constants involved in the expansion of the transformed transition moment operators relative to these three bands. It has been possible to derive the values of the coefficients of the expansion of the dipole moment with respect to normal coordinates: 22μx = 0.013 ± 0.003 D, 1μx = −0.020908 ± 0.00023 D, 3μx = 0.096867 ± 0.00099 D.Moreover, using the constants determined from the fit, the complete spectrum of the 2ν2, ν1 and ν3 bands of H218O has been computed including line positions, intensities, and assignments.

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