Intensities of vibronic origins in the electronic spectra of amino and aquo coordination complexes

Abstract

Comparison of the vibronic structure in electronic transitions of metal complexes with NH₂ or OH₂ rocking vibrational modes with that of complexes which do not have such modes, suggests that the high intensity of these modes in vibronic spectra is caused by the motion of the electron density in the lone pair orbital during the vibration.