Millimeter and Submillimeter-Wave Spectrum of Hydrogen Peroxide in the Ground and v3 = 1 Vibrational States.

The first measurements of the millimeter- and submillimeter (mm/submm)-wave rotational-torsional transitions in the v3 = 1 ground torsional state (n = 0) of hydrogen peroxide are reported. The 149 newly measured transitions extend from 72 to 623 GHz in frequency and up to J = 32 and Ka = 3 in rotational quantum number. Additional measurements in the ground vibrational and torsional state around 1 THz are also reported. These data, along with all previously published microwave, mm/submm-wave, and far infrared data in the ground and v3 = 1 vibrational state, along with recent infrared measurements, have been fitted simultaneously to their respective experimental uncertainties using a multi-state Hamiltonian that includes Fermi- and Coriolis-type interactions. Copyright 1998 Academic Press.