作者:M. V. Cañamares、D. A. Reagan、J. R. Lombardi、M. Leona
DOI:10.1002/jrs.4508
日期:2014.11
Mauve was the first synthetic organic dyestuff to be manufactured industrially. It was synthesized in 1856 by William H. Perkin. It is composed by different molecules named mauveine A, B, B2 and C. In this study, the dye was synthesized, and its individual components were analyzed by ordinary Raman spectroscopy (both dispersive and Fourier-transform-), and surface-enhanced Raman spectroscopy, after separation by thin-layer chromatography. Only surface-enhanced Raman scattering (SERS) gave rise to satisfactory Raman spectra of the dye. Five different fractions were separated on the thin layer chromatography plate, and Raman and SERS measurements were carried out directly on each separated spot on the plate. As in the analysis of the raw product of the synthesis, only SERS gave high quality Raman spectra for the eluted spots. The assignment of the normal modes of mauveine was aided by performing density functional theory calculations. Copyright © 2014 John Wiley & Sons, Ltd.
淡紫色是第一种工业化生产的合成有机染料。它由威廉·H·珀金(William H. Perkin)于1856年合成。它由名为淡紫色素A、B、B2和C的不同分子组成。在这项研究中,染料被合成,其各个成分在通过薄层色谱法分离后,通过普通拉曼光谱(包括色散和傅里叶变换)和表面增强拉曼光谱进行了分析。只有表面增强拉曼散射(SERS)产生了令人满意的染料拉曼光谱。在薄层色谱板上分离出五个不同的组分,并直接在薄层色谱板上的每个分离点进行拉曼和SERS测量。与合成原料的分析一样,只有SERS为洗脱点提供了高质量的拉曼光谱。通过执行密度泛函理论计算,有助于确定淡紫色素的正常模式。版权 © 2014 John Wiley & Sons, Ltd.