Vibration—Rotation Interaction in Polyatomic Molecules. II. The Determination of Coriolis Coupling Coefficients

A general method for the analytical treatment of vibration-rotation interaction in polyatomic molecules is presented. The method is especially adapted to carry out the calculation of the Coriolis coupling coefficients along with the normal coordinate treatment in terms of any chosen set of internal coordinates. The relations existing among the ζ elements and the potential constants are established in a general and convenient form. Particular attention is given to symmetric top molecules, and the effect of vibration-rotation interaction on band structure is discussed. Approximate methods for the calculation of zeta values are considered also.