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实验测定了室温下NO2 分子 50 5～ 52 0nm区域高分辨激光诱导荧光激发谱 ,在 50 5～ 52 0nm范围内标识了 10个振动带 ,并作了转动分析 ,得到了相应的带头位置、转动常数和旋 转耦合常数等 ,发现了 4个新的振动带 ,对振动带的转动分析结果表明 ,所有得到分析的谱线均属于平行跃迁 X1A1- A2 B2 ,电子激发态 A2 B2 与基态 X2 A1高振动能级之间存在强烈的相互作用 .
High-resolution laser-induced fluorescence excitation spectra of NO2 molecules in the region of 50 5 ~ 52 0 nm were measured at room temperature. Ten vibrational bands were identified in the range of 50 5 ~ 52 0 nm, and the rotation analysis was carried out. The corresponding head position and rotation The constants and rotational coupling constants, etc. Four new vibrational bands have been found. The analysis of the vibrational band shows that all of the analyzed spectra belong to the parallel transitions X1A1-A2B2, and the electron-excited state A2B2 is higher than the ground state X2A1 There is a strong interaction between vibrational levels.