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根据CH_3OH分子和NH_3分子的光化学特性,特别是它们在CO_2激光振荡谱带中吸收的异同性,选用TEA CO_2激光四条谱线9.6μP(20)、9.6μP(34)、10.6μP(20)、10.6μP(32)分别聚焦辐照甲醇蒸气和氨的混合气体,运用红外光谱、质谱和可见荧光检测等手段,得出反应产物是CH_4、C_2H_2、C_2H_4、C_6H_(12)N_4(六亚甲基四氨)和CH_3NH_2等,测定了反应速率、产物相对量同辐照谱线、脉冲能量、脉冲次数及反应物组分比的关系,考察了不同体系对激光能量的吸收及可见荧光的变化现象,并对这些结果做了分析。文章认为:虽然激发不同的分子,但化学反应历程相似,反应始于高振动激发的CH_3OH的分解,它或者本身被直接激发,或者由激发态 NH_3的能量转移而被激发;同时指出,激光辐照不同分子的结果,虽产物种类相同,但反应
According to the photochemical characteristics of CH_3OH and NH_3 molecules, especially their similarities and differences in absorption in the CO_2 laser oscillation band, four TEA CO_2 laser lines, 9.6μP (20), 9.6μP (34) and 10.6μP (20) 10.6μP (32) were focused on the mixed gas of methanol vapor and ammonia. The reaction products were CH_4, C_2H_2, C_2H_4, C_6H_ (12) N_4 (hexamethylene Tetraammine) and CH_3NH_2. The relationship between the reaction rate, the relative amount of the product, the energy of the irradiation, the pulse energy, the number of pulses and the ratio of reactants was investigated. The absorption of laser energy and the change of visible fluorescence , And analyzed these results. The article states that although different molecules are excited, the chemical reaction process is similar, the reaction begins with the decomposition of CH_3OH excited by high vibration, which is either directly excited or excited by the energy transfer of the excited state NH_3. Meanwhile, it is pointed out that the laser radiation According to the results of different molecules, although the same product type, but the reaction