在二硫化碳(CS2)和苯(C6H6)的二元溶液中, 随着相对体积浓度而变化, C6H6的基频ν１(992 cm-1) 的拉曼散射系数随浓度减小而增加, 而CS2的基频ν１(656 cm-1)的拉曼散射系数则随浓度增加而增加。 文章测量了这二元溶液相对不同体积浓度的拉曼光谱。 结果表明, 尽管CS2和C6H6的基频ν１的强度都随着浓度变化而发生较大变化, 但C6H6的基频ν１对其参与的ν１＋ν６～ν８费米共振几乎没有影响, 而CS2的基频ν１强度的变化不仅对ν１～２ν２费米共振产生较大影响, 还使基频ν２发生变化。 文章给出了实验结果, 并用Bertran费米共振理论和群论给予了解释。the Concentration on Fermi Resonance in Binary Solution

The Raman scattering coefficients of the fundamental ν1(992 cm-1) ofC6H6 and the fundamental ν１(656 cm-1) of CS2 changed dramatically with relativeconcentration of the binary solution of CS2 and C6H6. The Raman spectra of thebinary solution with different relative concentrations were measured. The resultsshow that both the ν1 fundamentals intensities changed dramatically with therelative concentration of the solution and the fundamental ν1 of C6H6 has littleeffect on the Fermi resonance ν１＋ν６～ν８. On the contrary, the change inthe ν１ fundamental intensity of the CS2 changed which has more effect not onlyon the Fermi resonance ν１～２ν２ but also on the ν２ fundamental. In thisreport, the experimental results were analyzed based on the J. F. Bertran theoryand group theory.