Molecular Rydberg Transitions in Carbon Monoxide. Term Value/Ionization Energy Correlation of BF, CO and N sub 2

摘要

The linear correlation between the term value and ionization energy for molecular Rydberg transitions is tested for the sequence of isoelectronic molecules BF, CO and N sub 2 based on a new measurement of the absorption spectrum of CO and data for BF and N sub 2 . For the npsigma series and np pi series converging on the first ionization potential, we find an excellent linear behavior (within 10 MeV) corroborating (I) the correlation and (II) the individual assignments. For Rydberg series leading to the A exp 2 DELTA and B exp 2 EPSILON exp + states, where no data for BF are available, a comparison of term values for CO and N sub 2 is presented. (Atomindex citation 11:545517)