单质硫<i>ν</i><sub>S-S</sub>伸缩振动的漫反射红外光谱研究

单质硫ν_S-S伸缩振动的漫反射红外光谱研究

摘要: 采用傅里叶变换漫反射红外光谱法，在500~400 cm^-1范围内研究了单质硫S-S键伸缩振动红外吸收模式（ν_S-S）的一维漫反射红外光谱、二阶导数漫反射红外光谱、四阶导数漫反射红外光谱和去卷积漫反射红外光谱，并针对单质硫ν_S-S，进一步开展了相关二维漫反射红外光谱研究。结果表明：单质硫ν_S-S的红外吸收频率主要包括464，466，468，474 cm^-1，而其红外吸收强度的变化顺序为464 cm^-1>474 cm^-1 > 468 cm^-1 > 466 cm^-1。

Abstract: A study on the sulfur S-S stretching vibration (ν_S-S) based on their one dimensional IR, 2nd derivative IR, 4th derivative IR and deconvolution IR spectrograms obtained by DRIFTS in the range of 500-400 cm^-1 was made, and special attention was paid on the stretching vibration of sulfur by using the diffuse reflectance two-dimensional IR spectrograms. It was shown that ν_S-S appeared near 464, 466, 468 and 474 cm^-1, and intensity of IR absorption of ν_S-S changed in the order of 464 cm^-1>474 cm^-1>468 cm^-1>466 cm^-1.