摘要
研究了CCl4的ν1+ν4与ν3的费米共振现象。结果表明ν1振动频率是影响费米共振红外和拉曼光谱特性参数(峰位差Δ,耦合系数W,光谱强度比R,非谐力常数K等)的主要因素,而其光谱强度大小却与这些参数无直接关系。本文用Berttran理论和群论对这一结果给以解释。该研究对理解费米共振现象和分子结构研究中的谱线归属等有参考价值。
The v1 ＋ v2 and v3 bands of CCl4 at Fermi resonance are studied. It is shown that me frequency v1 is the major factor that impacts the characteristic parameters of infrared and Raman spectra at Fermi resonance and the intensity has no direct relation with these parameters. The results are interpreted from group theory and the Bertran＇ s theory. This report provides reference value for the understanding of Fermi resonance and the band assignment in the study of molecular structures.
出处
《光散射学报》
2008年第3期254-257,共4页
The Journal of Light Scattering
基金
国家自然科学基金(10774057)
关键词
四氯化碳
拉曼光谱
费米共振
群论
红外光谱
Carbon tetrachloride
Raman spectrum
Fermi resonance
Group theory
Infrared spectrum
