What are normal modes of vibrations in case of carbonate ion?
In the case of the carbonate ion (CO3^2-), there are three normal modes of vibration associated with its symmetric stretching, asymmetric stretching, and bending motions. The symmetric stretching mode involves all three oxygen atoms moving in the same direction simultaneously, while the asymmetric stretching involves the two shorter C-O bonds stretching at different rates. The bending motion involves the distortion of the linear O-C-O angle.