The Combination Band ν1+ν2+ν3 of Heavy Water Vapor

Abstract
The vibration‐rotation band ν123 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 ν123 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.