DIPOLE MOMENT MATRIX FOR VIBRATION-ROTATION TRANSITIONS IN C//3//v MOLECULES.

The transformed dipole moment of C//3//v molecules has been worked out up to second order of approximation on the basis of its invariance properties. Its dependence on the total angular momentum components has been made explicit. The dipole moment matrix has been written with a view to calculate vibration-rotation intensities in the case of strongly interacting vibrational polyads. The importance of a coherent phase system for correct intensity calculations has been emphasized.