Kisiel Z, Bialkowska-Jaworska E, Pszczolkowski L
Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, Warszawa, 02-668, Poland
J Mol Spectrosc. 1997 Sep;185(1):71-8. doi: 10.1006/jmsp.1997.7379.
The analysis of the millimeter-wave rotational spectrum of the well-known halon molecule CBrClF2 was extended to rotational transitions in the excited vibrational states v9 = 1 (307 cm-1) and v5 = 1 (337 cm-1). The two states are appreciably coupled by a- and b-axis Coriolis interaction which was treated explicitly and spectroscopic constants were determined from measurements at frequencies from 121 to 330 GHz and J" from 18 to 111. The present work, together with our previous study (1996. J. Mol. Spectrosc. 177, 240-250), results in accurate constants in the rotational Hamiltonian for the four lowest vibrational states of C79Br35ClF2 and C81Br35ClF2. The double nucleus hyperfine structure in low-J transitions of the two 35Cl isotopomers of CBrClF2 was also measured in the region 3-14 GHz with a supersonic beam, cavity Fourier transform microwave spectrometer. All constants in both the inertial and the principal nuclear quadrupole coupling tensors have been determined for both Br and Cl nuclei. Copyright 1997 Academic Press. Copyright 1997Academic Press
对著名的哈龙分子CBrClF₂的毫米波转动光谱分析扩展到了激发振动态v9 = 1（307厘米⁻¹）和v5 = 1（337厘米⁻¹）的转动跃迁。这两个态通过a轴和b轴科里奥利相互作用明显耦合，对此进行了明确处理，并根据121至330吉赫兹频率以及J"从18至111的测量确定了光谱常数。本工作与我们之前的研究（1996. J. Mol. Spectrosc. 177, 240 - 250）一起，得出了C79Br35ClF₂和C81Br35ClF₂四个最低振动态转动哈密顿量中的精确常数。还使用超音速束腔傅里叶变换微波光谱仪在3 - 14吉赫兹区域测量了CBrClF₂的两种35Cl同位素异构体低J跃迁中的双核超精细结构。已确定了Br和Cl原子核在惯性张量和主核四极耦合张量中的所有常数。版权所有1997学术出版社。版权所有1997学术出版社
