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用时间分辨傅立叶红外发射光谱的方法对H原子与CO2分子的碰撞动力学进行了实验研究．用紫外激光光解的方法分别制备出三个不同平动能为174．7、241．0和306．2 kJ／mol的氢原子,并引发H+CO2→OH+CO反应．观察到了反应的产物,即振动激发的CO (v≤2)．同时也看到了在H原子与CO2分子的碰撞中发生高效的T- V能量转移．CO2的反对称伸缩模的最高振动能级为v=4．化学反应与能量转移的速率之比大约为10．
The collision kinetics of H atom and CO2 molecule were studied by time-resolved Fourier transform infrared spectroscopy. Three hydrogen atoms with different translational energies of 174.7, 241.0 and 306.2 kJ / mol were prepared by UV laser photolysis, and the reaction of H + CO2 → OH + CO was initiated. The product of the reaction was observed, that is, vibrating excited CO (v <2). At the same time, it is also seen that efficient T-V energy transfer occurs in the collision of H atoms with CO2 molecules. The maximum vibrational energy level of CO2 antisymmetric telescopic mode is v = 4. The ratio of chemical reaction to energy transfer is about 10.