The Millimeter-Wave Rotational Spectrum and Coriolis Interaction in the Two Lowest Excited Vibrational States of CHClF2
The Millimeter-Wave Rotational Spectrum and Coriolis Interaction in the Two Lowest Excited Vibrational States of CHClF2
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CHClF2 两个最低激发振动态下的毫米波旋转谱和科里奥利相互作用
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
G. Cotti
中科院分区：
文献类型：
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作者：
Z. Kisiel;L. Pszczółkowski;G. Cazzoli;G. Cotti
测量了CH 35 ClF 2（氟里昂CFC-22）在470 GHz处的毫米波转动谱，并将其归属于J = 80。该数据集由两种状态的850多个转换组成，并以两种方式减少。为了方便地再现谱，通过对J ″ ≤ 50的数据进行拟合，得到了每个态的有效A -和S -约化沃森六次能级常数.然而，最令人满意的数据简化是通过考虑两个振动状态之间的科里奥利相互作用获得的;所有数据的同时拟合导致状态间分离的准确值以及科里奥利系数，α（a）6，9和α（c）6，9，以及振动-旋转常数α，这些值与从头计算的值非常一致。
Abstract The millimeter-wave rotational spectrum of CH 35 ClF 2 (Freon CFC-22) in the two lowest excited vibrational states, ν 9 and ν 6 , was measured up to 470 GHz and assigned to J = 80. The data set consists of over 850 transitions for the two states and is reduced in two ways. For easy reproduction of the spectrum effective A - and S -reduction Watsonian sextic-level constants for each state are derived from fitting the data limited to J ″ ≤ 50. The most satisfactory data reduction is, however, obtained by taking into account the Coriolis interaction between the two vibrational states; a simultaneous fit of all the data results in an accurate value for the interstate separation and in Coriolis coefficients, ζ ( a ) 6,9 and ζ ( c ) 6,9 , and vibration-rotation constants, α, which are in good agreement with values from ab initio calculations.