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The vibration-rotation band ν1+ν2+ν3 in the heavy water vapor (D2O) spectrum has been remeasured. An analysis of the rotational structure has been carried out. From the interpretation of the data the value of the band center has been determined as well as the values of the reciprocals of inertia effective in this vibration state. The frequency ν1+ν2+ν3 is found to be 6533.4 cm−1. The effective reciprocals of inertia are A(V)=15.70 cm−1, B(V)=7.19 cm−1, and C(V)=4.69 cm−1.
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Dickey et al. (1952) studied this question.
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