As the rotational energy increases, the internuclear distance increases, due to the centrifugal force, which produces an increase in the moment of inertia. This distortion causes the rotational energy to be less than that of the rigid rotor and it is necessary to add the correction $-hDJ^2(J+1)^2$, where the centrifugal distortion constant D is a small positive constant.

We use cookies

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.