Effect of solution concentration on the structured order and optical properties of short-chain polyene biomolecules

作     者：OUYANG ShunLi1,2,SUN ChengLin1,2,ZHOU Mi1,2,LI DongFei2,WANG WeiWei1,2,QU GuanNan1,LI ZuoWei1,2,GAO ShuQin1 & YANG JianGe3 1 State Key Laboratory of Superhard Materials,Jilin University,Changchun 130012,China 2 College of Physics,Jilin University,Changchun 130023,China 3 The ordnance Engineering Department,Air Force Aviation University,Changchun 130022,China 

作者机构：Jilin University State Key Laboratory of Superhard Materials Changchun China (GRID:grid.64924.3d) (ISNI:***) Jilin University College of Physics Changchun China (GRID:grid.64924.3d) (ISNI:***) Jilin University College of Physics Changchun China (GRID:grid.64924.3d) (ISNI:***) Jilin University State Key Laboratory of Superhard Materials Changchun China (GRID:grid.64924.3d) (ISNI:***) Air Force Aviation University The ordnance Engineering Department Changchun China (GRID:grid.64924.3d) 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2010年第53卷第9期

页      面：1646-1650页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.10774057 and 10974067) 

主　　题：molecular structured order Raman spectroscopy Raman scattering cross section 

摘      要：We have measured the Raman spectra and UV-Vis absorption spectra of linear polyene biomolecules(β-carotene and lycopene) in CS2 at low concentrations(10-6-10-10 mol/L).With decreasing concentration,all the carbon-carbon vibrations form a coherent mode in ordered β-carotene and lycopene due to extended π-conjugation that gives strong electron-phonon coupling,which leads to an anomalous experimental *** observed an extremely high Raman scattering cross section(RSCS) and the Raman activities in β-carotene and lycopene are characterized by intensive overtones and ***,the UV-Vis absorption bands become narrower.