Information theoretic prior functions for large molecular systems

Several general cases of information theoretic prior functions for large molecular systems are derived. These are intended to serve as examples for the deviation of prior functions appropriate for still other systems. General procedures are outlined for obtaining closed-form expressions for the desired prior functions in the continuous rigid-rotor, harmonic oscillator (RRHO) approximation and in the absence of angular momentum constraints, and these are applied to several cases of current experimental interest. Finally, a few cases of angular momentum deficient systems are treated.