一、红外光谱原理1.分子的内部运动和分子光谱分子的内部运动可分为三种,即转动、振动和电子运动。分子的能量等于这三种运动能量之和,E=E电十E振十E转。这三种运动的能量均是量子化的。图1示意出这些能级分布的情况,各能级之间跃迁时吸收或发射光子,便产生分子光谱。 First, the principle of infrared spectroscopy 1. Internal molecular motion and molecular molecular motion within the molecule can be divided into three, namely, rotation, vibration and electronic motion. The energy of the molecule equals the sum of the three kinetic energies, E = E, E, E, E, E. The energies of these three motions are all quantized. Figure 1 shows the distribution of these energy levels in the case of transitions between energy levels that absorb or emit photons and produce molecular spectra.