Mean Amplitudes of Vibration and Thermodynamic Functions of the Dichlorides of Oxygen and Sulphur

The various stages of improvement in the vibrational as well as molecular structure studies for the dichlorides of oxygen and sulphur have been reported. The computed numerical values of (1) mean‐square amplitude quantities, (2) generalized mean‐square amplitudes (mean‐square parallel amplitudes, mean‐square perpendicular amplitudes, and mean cross products) and (3) mean amplitudes of vibration for the temperatures at T=0 and T=298°K have been presented for these two molecules. Further, the molar thermodynamic functions have been calculated by using the fundamental vibrational frequencies with the assumption of a rigid rotator, harmonic oscillator approximation for the temperature range from 50° to 1600°K. Besides these, the computed numerical values of the generalized mean‐square amplitudes have also been reported for the difluorides of oxygen and silicon.