Rotational spectrum and molecular constants of the diatomic GaCl in its electronic ground state1ε+

Research paper by J. Hoeft, K. P. R. Nair

Indexed on: 01 Jun '86Published on: 01 Jun '86Published in: Zeitschrift für Physik D Atoms, Molecules and Clusters


At wavelengths near 1 mm six rotational transitions of GaCl have been observed. The analysis including previous measurements on the rotational transitionJ = 1 ← 0 resulted in extended sets of the Dunham parametersY01,Y11,Y21,Y31,Y02,Y12 andY03 of the four isotopic species69Ga35Cl,71Ga35Cl,69Ga37Cl and71Ga37Cl. With these microwave data the constantsY10 ≈ εe and —Y20 ≈ ωexe were determined. The parameters of the Dunham potentiala0,a1,a2,a3 andre are given. The GaCl was produced by reaction of gaseous CCl4 with Ga evaporated at 1,500°C.