Molecular microwave spectra tables

This paper presents a group of t ables t hat gi ve the frequencies, assignmen t of qua nt um numbers, and intensities of over 700 microwave absorption lines. The best a vailabl e valu es of other pert inen t m olecul ar data, s uch a s moment s of in ert ia, dipole m om ent s, q ua drupo le coupling constant s, a nd rotation-vibration constants are also in cluded. The freq uencies are listed once f or' ea ch m olecule and again in consecut ive ascending order of frequency . R eferences are given for all data included. Frequencies listed to t he neares t m egacycle were generally m easured with a cavi ty wave m eter a nd may be in error by as m uch as 10 m ega cycles, whereas t hose given to' a fraction of a megacycle are genera lly known to a n accuracy of about 0.1 m egacycle.