吩噻嗪是含有有N、S的杂环化合物，具有大的离域π键。用Gaussian 09程序，在B3LYP方法下，Ag原子使用LANL2DZ赝式基组，C、H、N、S等原子使用6-31++G(d,p)基组，优化并计算了吩噻嗪和吩噻嗪银配合物（PTH-Ag）的拉曼光谱，并利用GaussianView对PTH分子进行归属，为食品和产品中吩噻嗪残留的定性、定量测定提供理论依据。计算结果说明连接Ag原子越多，增强效果越明显。

    Phenothiazine is a heterocyclic compound containing N, S, has a large delocalized π bond. With Gaussian 09 program, at the B3LYP method, Ag atoms using Lanl2dz pseudopotential basis set, C, H, N, S atoms using 6-31++G (D, P) basis set to optimize and calculate the phenothiazine and phenothiazine hydrochloride silver with the Raman spectra of the compounds (PTH-Ag), and the GaussianView of PTH molecule to belong and phenothiazine residues in food and products of qualitative and quantitative determination of provide a theoretical basis. The results show that the more Ag atoms are connected, the more obvious enhancement effect.