Ulenikov ON, Onopenko GA, Tyabaeva NE, Schroderus J, Alanko S
Physics Department, Tomsk State University, Tomsk, 634050, Russia
J Mol Spectrosc. 1999 Feb;193(2):249-259. doi: 10.1006/jmsp.1998.7729.
The rotational analysis in the ground vibrational state has been carried out for CH3D by using the ground state combination differences. More than 1500 allowed and 2500 forbidden transitions from the fundamental bands nu3, nu5, and nu6 were used to determine 12 rotational parameters, which reproduce the observed combination differences within an accuracy of 1.0 x 10(-4) cm-1. Altogether ten independent a1-a2 (K = 3) splittings with J >/= 10 in the vibrational ground state were observed and analyzed both with supercombination differences method [O. N. Ulenikov, S. Alanko, M. Koivusaari, and R. Anttila, Chem. Phys. Lett. 268, 242-248 (1997)] and by generating energy levels from Hamiltonian. Problems in simultaneous determination of epsilon; and &htilde;3 constants responsible for such splittings are discussed. Copyright 1999 Academic Press.
利用基态组合差对CH₃D在基振动态进行了转动分析。来自基频带ν₃、ν₅和ν₆的1500多个允许跃迁和2500个禁戒跃迁被用于确定12个转动参数，这些参数能在1.0×10⁻⁴ cm⁻¹的精度内重现观测到的组合差。在基振动态中总共观测并分析了十个独立的a₁ - a₂（K = 3）分裂，J≥10，采用了超组合差方法[O. N. 乌列尼科夫、S. 阿兰科、M. 科伊武萨里和R. 安蒂拉，《化学物理快报》268, 242 - 248 (1997)]以及通过哈密顿量生成能级的方法。讨论了同时确定负责这种分裂的ε和&htilde;3常数时存在的问题。版权所有1999年，学术出版社。
