title: The Rotational Spectrum of H2Te
abstract: In the present work, we study the spectrum of the H2Te molecule in the submillimeter-wave and far infrared region. An important aim of this investigation is the further experimental characterization of the anomalous "four-fold cluster effect" exhibited by the rotational energy levels in the vibrational ground state of H2Te. The spectrum in the region 90-472 GHz was measured with a source-modulated millimeter-wave spectrometer and that between 600 and 1600 GHz with a far-infrared sideband spectrometer. The far infrared spectrum from 30 to 360 cm-1 was measured with a Bruker IFS 120 HR interferometer attached to a 3 m long cell. We have assigned 224 submillimeter-wave lines and 1695 FIR lines. These observed data were supplemented by a large number of ground state combination differences derived from rotation-vibration bands of H2Te, and the resulting large data set was analyzed by means of a modified Watson Hamiltonian. Accurate sets of rotational and centrifugal distortion constants for all eight tellurium isotopomers were obtained.
authors.affiliation: Fachbereich 9, Bergische Universitat-Gesamthochschule Wuppertal, Wuppertal, D-42097, Germany
authors.initials: IN
authors.lastname: Kozin
authors.initials: P
authors.lastname: Jensen
authors.initials: O
authors.lastname: Polanz
authors.initials: S
authors.lastname: Klee
authors.initials: L
authors.lastname: Poteau
authors.initials: J
authors.lastname: Demaison