节点文献
苯胺吸附在银上SERS光谱和面外弯曲振动非谐性的理论研究
Theoretical Study on SERS and Wagging Vibrational Anharmonicity of Aniline Adsorbed on Silver
【摘要】 芳香胺分子的氨基面外弯曲振动模(wagging振动)具有特殊的拉曼信号,其拉曼频率和强度容易受分子吸附作用、溶剂化效应等因素的影响。为了研究拉曼信号发生变化的原因,我们采用密度泛函理论(DFT)计算的方法,讨论了苯胺分子的吸附构型和非谐性振动等因素对其在银上的SERS的影响。
【Abstract】 The Raman frequencies and intensities of the wagging vibrational modes of aromatic amine molecules have special Raman signals, which are easily influenced by molecular adsorption and solvation effects. To investigate the reasons for the change of Raman signals, we have discussed the influence of adsorption configuration and anharmonic vibration of aniline molecules on its SERS on silver by using density functional theory calculations.
【关键词】 芳香胺;
表面增强拉曼光谱;
密度泛函理论;
面外弯曲振动模;
银纳米粒子;
【Key words】 Aromatic amine; SERS; Density functional theory; Wagging vibrational mode; Ag nanoparticals;
【Key words】 Aromatic amine; SERS; Density functional theory; Wagging vibrational mode; Ag nanoparticals;
【基金】 国家自然科学基金项目(22032004)资助
- 【文献出处】 光谱学与光谱分析 ,Spectroscopy and Spectral Analysis , 编辑部邮箱 ,2023年S1期
- 【分类号】O657.37
- 【下载频次】5