自Fleischmann等在1973年首次发现吡啶在银电极上的表面增强拉曼散射(SERS)以来,人们先后研究了许多体系的SERS。如有人在真空中将苯、1,3,5-三嗪蒸汽沉积在低温银表面,观察SERS,发现苯是平躺在银上;1,3,5-三嗪在覆盖度较高时是竖立吸附,它和表面的作用是通过氮原子上的孤对电子实现。然而,大多数分子更倾向于以π键即平躺方式 Since the first discovery of surface-enhanced Raman scattering (SERS) of pyridine on silver electrodes by Fleischmann et al. In 1973, many systems have been investigated for SERS. If someone in the vacuum benzene, 1,3,5-triazine vapor deposition on the surface of low temperature silver, SERS observed, benzene is lying on the silver; 1,3,5-triazine in the coverage is high Erected adsorption, it and the role of the surface through the nitrogen atom on the lone pair of electrons. However, most molecules are more inclined to the π bond that lying