为确定表面增强拉曼光谱中某些有争议的弱振动模式是来自高阶的影响还是分子基团对称性变化的影响,本文以1,4-苯二硫醇作为探针分子提供了一种实验验证的框架方法.光谱实验显示,观测到的有争议的弱振动模式并不是来自高阶的影响,而是分子基团对称性变化所致.我们的实验框架方法很容易拓展开来,如用于研究其它波长激光激发的类似体系或有机分子搭接的分子结. In order to determine whether some of the controversial weak vibration modes in surface-enhanced Raman spectroscopy are due to higher-order effects or to changes in the symmetry of the molecular groups, this paper provides a probe of 1,4-benzene dithiol as a probe molecule Experimental validation of the framework approach.Experimental spectroscopy experiments show that the observed modes of weak vibration are not due to higher order effects but rather to changes in the symmetry of the molecular group.Our experimental framework approach is easily extended, Used to study similar systems excited by other wavelengths of laser or organic molecules overlap the molecular junction.