Pmdash;RMaxima Separations in Unresolved Parallel Bands of Symmetrichyphen; and Slightly Asymmetrichyphen;Top Molecules

摘要

The formulas derived by Gerhard and Dennison for calculatingPandRbranch separations in parallel type vibrationmdash;rotation bands have been applied to 50 symmetric and slightly asymmetric molecules. If consideration is restricted to those fundamental bands that are not obviously overlapped or perturbed by interaction with other bands the average difference between observed and calculated separations is found to be plusmn;5 with only seven differences exceeding plusmn;10.