The Molecular Structure, Dipole Moment, and g Factor of Ozone from Its Microwave Spectrum

Four low-J rotational transitions of 0316 have been measured in the region from 42 to 118 kmc. The rotational spectroscopic constants found are A = 106,530.0±1.1 Mc, B = 13,349.06±0.06 Mc, C = 11,834.3±1.1 Mc. The oxygen nuclei form an isosceles triangle with an apex angle of 116°49′±30′, and the two equal internuclear distances are 1.278±0.003A. From the Stark splitting of the 20,2→11,1 transition the dipole moment is 0.53±0.02 debye. Zeeman splittings of this transition show that ozone is not significantly paramagnetic.