AgNO_3溶液中meso—四—(对磺基苯)卟啉的表面增强Raman光谱  

SURFACE-ENHANCED RAMAN SCATTERING OF MESO-TETRAKIS(4-SULFONATOPHENYL)PORPHINE IN AgNO_3 SOLUTION

作　　者：牟春博[1] 陈东明[2] 王秀燕[2] 张保忠[2] 何天敬[2] 辛厚文[2] 刘凡镇[2] 

机构地区：[1]青岛大学化学系,青岛266071 [2]中国科技大学化学物理系,合肥230026

出　　处：《青岛大学学报（自然科学版）》1996年第2期49-54,共6页Journal of Qingdao University(Natural Science Edition)

基　　金：国家自然科学基金;中科院开放实验室--中国科技大学结构成分分析中心资助项目

摘　　要：本文研究了 AgNO_3溶液中 meso-四-(对磺基苯)卟啉(简称 H_2TSPP)的表面增强Raman 光谱(SERS).发现 H_2TSP P吸附于光还原的 Ag 溶胶颗粒表面与银进行了络合反应,生成 meso-四-(对磺基苯)卟啉银(Ⅰ)(简称 Ag(Ⅰ)TSPP).对 SERS 谱受波长及AgNO_2溶液浓度的影响进行了讨论.结果显示光还原 AgNO_3溶液所形成的 Ag 胶体,有希望成为一种制备简单而又具有实用价值的 SERS 活性基底.Surlace-enhanced Raman Scattering(SERS)was measured for meso-tatrakis(4-sul- fonatophenyl)porphine(H_2TSPP) in AgNO_s solution.The experiments show that all of the H_2TSPP molecv es adsorbed on Ag photocolloids undergo a silver incorporation,a fact which contrasts sharply with the phenomena of H_2TSPP adsorbed at Ag electrode. The results rereal that the excitation wavelength have a profound influence on por- phyrins adsorption behavior as well as their photostability.A high signal-to-noise ratio SERS spectra were recorded by using an appropriate concentration of AgNO_3 solution. So,the Ag photocolloids from AgNO_3 solution can be a kind of easily made and useful SERS-active substrate.

关 键 词：硼酸银 卟啉 H2TSPP 散射谱 SERS 

分 类 号：O626.13[理学—有机化学]