Kozin IN, Jensen P, Polanz O, Klee S, Poteau L, Demaison J
Fachbereich 9, Bergische Universitat-Gesamthochschule Wuppertal, Wuppertal, D-42097, Germany
J Mol Spectrosc. 1996 Dec;180(2):402-13. doi: 10.1006/jmsp.1996.0264.
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.
在本工作中，我们研究了H₂Te分子在亚毫米波和远红外区域的光谱。这项研究的一个重要目标是进一步通过实验表征H₂Te振动基态中转动能级所表现出的反常“四重簇效应”。使用源调制毫米波光谱仪测量了90 - 472 GHz区域的光谱，使用远红外边带光谱仪测量了600至1600 GHz之间的光谱。使用连接到3米长气室的布鲁克IFS 120 HR干涉仪测量了30至360 cm⁻¹的远红外光谱。我们已经归属了224条亚毫米波谱线和1695条远红外谱线。这些观测数据通过大量源自H₂Te转动 - 振动带的基态组合差值得到补充，并且利用修正的沃森哈密顿量对所得的大量数据集进行了分析。获得了所有八种碲同位素异构体精确的转动常数和离心畸变常数集。
