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The Ethylene-Carbon Dioxide Complex and the Double Rotor Model.
The Journal of Physical Chemistry A ( IF 2.7 ) Pub Date : 2020-01-07 , DOI: 10.1021/acs.jpca.9b11019
A R W McKellar 1 , N Moazzen-Ahmadi 2
Affiliation  

The infrared spectrum of the weakly bound C2H4-CO2 complex is investigated in the region of the ν3 fundamental band of CO2 (≈2350 cm-1), using a tunable OPO laser source to probe a pulsed supersonic slit jet expansion. The spacing of the various K-subbands in this perpendicular (ΔK = ±1) spectrum is very irregular, and the pattern of irregularity is quite different from that observed previously in another C2H4-CO2 band by Bemish et al. [ J. Chem. Phys. 1995 , 103 , 7788 ]. But by allowing for the different symmetry of the ν3 (CO2) upper vibrational state, both results can be strikingly well explained using the "double internal rotor" model as described by Bemish et al.

中文翻译:

乙烯-二氧化碳配合物和双转子模型。

使用可调谐的OPO激光源探测脉冲超音速狭缝射流膨胀,研究了弱结合的C2H4-CO2复合物的红外光谱,其范围为CO2的ν3基带附近(≈2350cm-1)。在这个垂直(ΔK=±1)光谱中,各个K子带的间距非常不规则,并且不规则性的模式与Bemish等人先前在另一个C2H4-CO2波段中观察到的完全不同。[J. Chem。物理 1995,103,7788]。但是通过考虑ν3(CO2)上部振动状态的不同对称性,使用Bemish等人描述的“双内转子”模型可以很好地解释这两种结果。
更新日期:2020-01-22
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