Raman Spectroscopy Study on the Adsorption Orientation of Biphenylcarboxlic Acid Derivatives

Journal of the Korean Chemical Society

Hong Seok Song¹  Il Ki Jung¹  Ho Seob Choi¹  Kyu Seok Choi¹  Heay Ran Choi¹  Keunok Han Yu¹  Sang Hee Lee¹  Soo-Chang Yu¹ 

关键词: Au;    Ag;    SERS;    Monolayer;    BPCA;    Adsorption Orientation;    Au;    Ag;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Surface-enhanced Raman(SER) spectroscopy was utilized to investigate the adorption orientation of the 4-biphenylcarboxylic acid(BPCA) derivatives, such as 4'-cyano-BPCA(c-BPCA), 4'-mercapto-BPCA(m-BPCA), and 4'-amino-BPCA(a-BPCA), which were adsorbed on Au and Ag colloid monolayers. For the systematic approach, information regarding the adsorption behavior of benzoic acid, biphenyl, and BPCA was applied to the target molecules. From the spectral behaviors of benzene ring, C-H stretching, carboxylate anion, and the other finger printing vibrational modes, it was concluded that only the m-BPCA was adsorbed tilt with thiol group being adsorbed on Au surface, whereas the other molecules were adsorbed flat on both Au and Ag surfaces.

【 授权许可】

Unknown