邻羟基苯甲酸在银基底上吸附方式的理论和实验研究

摘要

针对邻羟基苯甲酸(OHBA)在银胶溶液和覆银滤纸上的吸附方式，建立了一个理论模型，经过理论值和实验值对比，发现该模型比较合理。%Surface-enhanced Raman scattering (SERS) spectra of o-hydroxybenzoic acid (OHBA) in the silver colloidal solution and on the dried silver-coated filter paper are measured, respectively.A model of OHBA adsorbed on the sur-faces of silver substrate is established and the Raman spectra of the model using DFT-B3PW91 with lanl2dz is calcu-lated.By comparing the theoretical values with the experimental values, we find that the calculated Raman frequencies of the model are in good agreement with experimental values, respectively.