铈离子与银表面NAD自组装单分子层作用的SERS光谱研究  

The SERS Observation of Impact of the Ce^(3+) on the Structure of NAD Monolayers at the Silver Surface

作　　者：封婕[1] 朱筠[1] 孙晓靖[1] 杨海峰[1] 章宗穰[1] 

机构地区：[1]上海师范大学生命与环境科学学院,上海200234

出　　处：《光散射学报》2006年第3期225-228,共4页The Journal of Light Scattering

摘　　要：本文采用表面增强拉曼光谱,观察了稀土三价铈离子与银表面NAD自组装单层膜的相互作用。实验结果和PM3理论计算表明,三价铈离子是与NAD+分子中磷酸酯及核糖部分发生配位,从而影响单分子层的吸附结构。The structure of NAD^＋ monolayers at the silver surface and the impact of Ce^3＋ on it were investigated by using SERS spectroscopy. The results of spectra and vibration calculations with PM3 method suggest that Ce^3＋ trend to form complex with the phosphate and ribose on the nicotinamide side of NAD^＋, leading to the change of its adsorption mode.

关 键 词：NAD^+ 三价铈离子 原位增强拉曼光谱 自组装 

分 类 号：O657.37[理学—分析化学]