Electric and magnetic properties of ozone by molecular beam electric resonance spectroscopy

Abstract

Molecular beam electric resonance spectrsocopy has been used to investigate the Δ J = 0, Δ M = ± 1 transition of the 1 11, 2 11, 4 04 and 4 13 rotational states of ozine in the presence of external electric and magnetic fiels. The data have been used to evaluate the electric dipole moment μ = 0.53373 (7) D; the electric polarizability anisotropies α aa −α = 2.04(40) Å 3 and α bb −α = −0.98(13) Å 3; the molecular g-values g aa = −2.9877(9), g bb = −0.2295(3) and g cc = −0.0760(3); and the magnetic susceptibility anisotropies (in units of 10 −6 erg/G 2 mole) x aa − x = 23.85(11) and x bb − x = 0.41(8). The molecular quadrupole moments obtained from the g-values and the magnetic susceptibility anisotropies are in satisfactory agreement with the results of ab initio calculations. The bulk susceptibility of ozone is estimated to be x = 8.0 × 10 −6 erg/G 2 mole, using the theoretical value of the out-of-plane component of the second moment of the electronic charge distribution.