【摘要】 费米共振是振动光谱中常见的现象,变换溶剂法是一种研究费米共振的主要方法。利用傅里叶变换红外光谱法研究了对苯醌在13种溶剂中的费米共振现象。研究发现溶剂的介电常数与费米共振的强度比之间存在一定的函数关系,通过曲线拟合得到费米共振的强度比与溶剂介电常数之间关系的经验公式。并把Kirkwood-Bauer-Magat(KBM)方程引入到费米共振研究中,得到费米共振的强度比与介电常数的关系,这与实验得到的经验公式一致。作者对Nyquist和Seehra的红外光谱数据分别进行处理也得到了类似的结果。更多还原

【Abstract】 Fermi resonance is one of the general and important phenomena in vibration spectra.The method of solvent variation is one of the main methods to study Fermi resonance.In the present paper,FTIR spectroscopy was used to study the Fermi resonance of p-benzoquinone in thirteen solvents.The results show that there are some function relationships between the dielectric constant of solvent and the intensity ratio of Fermi resonance.And the empirical formula was obtained by curve fitting.The equation of Kirkwood-Bauer-Magat was applied to the study of Fermi resonance.And the authors obtained the relation between the intensity ratio R and the dielectric constant ε.This result is in accordance with the empirical formula.In order to confirm our result,the infrared data of R.A.Nyquist and J.K.Seehra were analyzed.These results are in accord with that of p-benzoquinone.更多还原