This form of transition moment is particularly appropriate for asymmetric tops, as it allows transition
moments to be set along the a, b, or c inertial axes.
Settings
Rank
Rank of transition - Must be 2 (twice 1) for a normal
electric dipole transition.
Axis
Axis of transtion moment - a, b or c.
Parameters
Strength
Relative transition (dipole) moment - note that the relative
intensity is proportional to the square of this value.