This work is supported by the National Natural Science Foundation of China (Grant No. 11574107).
机构署名：
本校为第一且通讯机构
院系归属：
物理科学与技术学院
摘要：
Rovibrational absorption spectra of Ar–SO2 and (SO2)2 van der Waals complexes generated in a slit supersonic jet expansion have been recorded in the v1 symmetric stretching region of SO2 monomer using an external-cavity quantum cascade laser. Two vibrational bands for (SO2)2 and one for Ar–SO2 are assigned and analyzed. All these vibrational bands are of a/c hybrid type. The observed infrared transitions are fitted together with previous radio frequency and microwave spectra, yielding precise molecular constants in both the ground and excited...
