4-氨基水杨酸钠二水合物的傅里叶变换红外光谱、傅里叶变换拉曼光谱和傅里叶变换表面增强拉曼光谱
FT-IR, FT-Raman and FT-SERS spectra of 4-aminosalicylic acid sodium salt dihydrate.
作者信息
Panicker C Yohannan, Varghese Hema Tresa, John Annamma, Philip Daizy, Istvan Krisztina, Keresztury Gabor
机构信息
Department of Physics, TKM Arts and Science College, Kollam, India.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2002 Jan 15;58(2):281-7. doi: 10.1016/s1386-1425(01)00541-8.
FT-IR, FT-Raman and FT-SERS spectra of 4-aminosalicylic acid sodium salt dihydrate (4ASAS) have been recorded and analysed. The vibrational bands due to NH2, OH, carboxyl group, and the benzene ring are identified. The CX ipb(17a, 17b), CC ipb(6,18a) and CH ipb (3,14a, 14b) bands are more enhanced in SERS. Broadening of the inplane carboxyl bend indicates interaction with the silver surface. Further the vC=O, v(C-O)c and v(C-O)h are intense in the SERS spectrum. The rocking and wagging modes of NH2 also show up in SERS. The molecule (O, N donor ligand) is thought to adsorb through the carboxyl oxygen atom with the benzene ring in a 'perpendicular side on orientation' with respect to the silver surface.
已记录并分析了二水合4-氨基水杨酸钠盐（4ASAS）的傅里叶变换红外光谱（FT-IR）、傅里叶变换拉曼光谱（FT-Raman）和傅里叶变换表面增强拉曼光谱（FT-SERS）。识别出了由氨基、羟基、羧基和苯环引起的振动带。在表面增强拉曼光谱中，CX ipb(17a, 17b)、CC ipb(6,18a)和CH ipb (3,14a, 14b)带增强更为明显。面内羧基弯曲的展宽表明与银表面存在相互作用。此外，vC=O、v(C-O)c和v(C-O)h在表面增强拉曼光谱中较为强烈。氨基的摇摆和摆动模式在表面增强拉曼光谱中也有出现。该分子（氧、氮供体配体）被认为通过羧基氧原子吸附，苯环相对于银表面呈“垂直侧立取向”。
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