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Manifestation of Fermi resonance in Raman spectra of micellar aqueous solutions of sodium octanoate

机译:辛酸钠水溶液Raman光谱中Fermi共振的表现

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The paper presents the results of an experimental study of the role of the Fermi resonance (FR) between the overtone of the bending and symmetric valence vibrations of the water molecule in micellar solutions of sodium octanoate in the mechanisms of formation of the water valence band. The analysis of broad spectral bands was carried out using genetic algorithms and gradient methods. The frequency detuning between the components of the Fermi-doublet for all the samples were obtained at room temperature. For aqueous solutions of sodium octanoate in the critical concentration of micelle formation (0.4 M) frequency detuning ceases to decrease with the growth of surfactant concentration, which is explained by the strengthening of the network of hydrogen bonds in the solution in the process of combining monomers and dimers of surfactants in multimolecular aggregates - micelles. A significant contribution of the Fermi resonance to the intensity of the valence band of water in sodium octanoate solutions was demonstrated. The FR interaction constants were calculated.
机译:本文介绍了FERMI共振(FR)在辛酸钠溶液溶液中水分子的弯曲和对称价振动的泛孔之间作用的实验研究的实验研究。使用遗传算法和梯度方法进行广谱带的分析。在室温下获得所有样品Fermi-Doublet的组分之间的频率静脉。对于胶质酸钠水溶液,在胶束形成的临界浓度(0.4M)的频率静脉中,随着表面活性剂浓度的生长,通过加强单体中的溶液中的氢键网络的加强来解释。多分子聚集体中表面活性剂的二聚体 - 胶束。证明了FERMI共振对辛酸钠溶液中水的价带强度的显着贡献。计算FR相互作用常数。

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