Surface-enhanced resonance Raman scattering (SERRS) spectroscopy applied to phytochrome and its model compounds. I. Biliverdin photoisomers
作者:Randall E. Holt、David L. Farrens、Pill Soon Song、Therese M. Cotton
DOI:10.1021/ja00208a003
日期:1989.12
of surface-enhanced resonance Raman scattering (SERRS) spectroscopy to the analysis of the configuration of biliverdin dimethyl ester (BVDE) is reported. SERRS spectra obtained by adsorption of the compounds onto an electrochemically roughened silver electrode and recorded at 7 K were intense and free of significant photodegradation. The similarity of the SERRS and resonance Raman (RR) spectra obtained
报告了表面增强共振拉曼散射 (SERRS) 光谱在分析胆绿素二甲酯 (BVDE) 构型中的应用。通过将化合物吸附到电化学粗糙的银电极上并在 7 K 下记录而获得的 SERRS 光谱强烈且没有明显的光降解。在相同条件下获得的 SERRS 和共振拉曼 (RR) 光谱的相似性表明 BVDE 的电子结构在与银表面相互作用时不会发生扰动,并且构成 BVDE 溶液的构象异构体的分布没有改变。还提供了氘化和单质子化 Z,Z,Z 异构体的 SERRS 光谱。为了研究构型对拉曼光谱的影响,我们合成并纯化了 E,Z,A 和 Z,Z,BVDE 的 E 异构体。从直接从 TLC 板上洗脱的化合物溶液获得了优异的 SERRS 光谱。