Force fields of NSF, NSCl, NSBr, SSO, HCO, HOF, HOCl, HOBr and HOI have been computed using Redington’s method. The angle parameters φ 12 , φ 13 and φ 23 are fixed through F steep critical point solution. The parametrised eigenvector matrices obtained are found to possess the properties predicted by Peacock et al. Mean amplitudes of vibration, Coriolis coupling constants, inertia defects and centrifugal distortion constants have also been calculated and compared with literature values. Redington’s approach is found to reproduce all the molecular constants with accuracies comparable with conventional methods.