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利用分子束装置研究了F与CH_3F反应在可见光范围(450—900nm)的化学发光.观察到HCF(A~1A″—X~1A′)的七个振动带和HF电子基态振动广频跃迁的四个振动带和它们的强度随反应物流量的变化.求得HF分子的V′=4、5、6能级相对振动布居和V′=3的转动温度.分析表明两种光谱都是第二步反应(F+CH_2F)引起的,这步反应造成了HF高振动能级的统计性粒子分布和转动能级的玻尔兹曼分布.
The chemiluminescence of the reaction of F with CH_3F in the visible range (450-900 nm) was studied by using molecular beam technique. It was observed that the vibrational bands of the seven vibrational bands of HCF (A ~ 1A "-X ~ 1A ’ Four vibrational bands and their intensities as a function of the flow rate of the reactants. The rotational temperatures of the V ’= 4,5,6 levels of HF molecules relative to the population of vibration and V’ = 3 are obtained. The analysis shows that both spectra are The second reaction (F + CH_2F) causes this step reaction to cause the statistical particle distribution and the Boltzmann distribution of rotational energy levels for the high vibrational levels of HF.