论文标题
乙烯 - 二氧化乙烯复合物和双转子模型
The ethylene-carbon dioxide complex and the double rotor model
论文作者
论文摘要
使用可调的OPO激光源来探测脉冲超音速缝隙射流膨胀，研究了弱结合的C2H4-CO2复合物的红外光谱。在此垂直频谱中，各种k子带的间距非常不规则，并且不规则的模式与Bemish等人先前在另一个C2H4-CO2频段中观察到的模式大不相同。 [J。化学物理。 103，7788（1995）]。但是，通过允许使用NU3（CO2）上振动状态的不同对称性，可以使用Bemish等人所述的“双重内部转子”模型来很好地解释这两个结果。
The infrared spectrum of the weakly-bound C2H4-CO2 complex is investigated in the region of the nu3 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 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. 103, 7788 (1995)]. But by allowing for the different symmetry of the nu3 (CO2) upper vibrational state, both results can be strikingly well explained using the 'double internal rotor' model as described by Bemish et al.
