Raman, infrared, SERS and theoretical study of 3-(1-phenylpropan-2-ylamino) propanenitrile, fenproporex

被引:3
作者
Diaz Fleming, Guillermo [1 ]
Celis, Freddy [2 ]
Campos-Vallette, Marcelo [3 ]
Aliaga, Alvaro E. [3 ]
Escobar, Marcela [4 ]
Koch, Rainer [5 ,6 ]
机构
[1] Univ Playa Ancha, Mol & Atom Spect Lab, Dept Chem, Fac Sci, Valparaiso, Chile
[2] Univ Santiago, Fac Chem & Biol, Santiago, Chile
[3] Univ Chile, Fac Sci, Mol Spect Lab, Dept Chem, Santiago, Chile
[4] Univ Valparaiso, Fac Pharm, Valparaiso, Chile
[5] Carl von Ossietzky Univ Oldenburg, Inst Pure & Appl Chem, D-26111 Oldenburg, Germany
[6] Carl von Ossietzky Univ Oldenburg, Ctr Interface Sci, D-26111 Oldenburg, Germany
关键词
fenproporex; infrared; Raman; SERS; DFT calculations; SURFACE-ENHANCED RAMAN; DENSITY-FUNCTIONAL THEORY; SPECTROSCOPY; SCATTERING; ELEMENTS; SILVER; GOLD; TEMPERATURE;
D O I
10.1002/jrs.2882
中图分类号
O433 [光谱学];
学科分类号
0703 ; 070302 ;
摘要
Infrared, Raman and surface-enhanced Raman scattering (SERS) spectra of 3-(1-phenylpropan-2-ylamino) propanenitrile (fenproporex) have been recorded. Density functional theory (DFT) with the B3LYP functional was used for optimizations of ground state geometries and simulation of Raman and SERS vibrational spectra of this molecule. Bands of the vibrational spectra were assigned in detail. The comparison of SERS spectra obtained by using colloidal silver and gold nanoparticles with the corresponding Raman spectrum reveals enhancement and shifts in bands, suggesting a possible partial charge-transfer mechanism in the SERS effect. Information about the orientation of fenproporex on the nanometer-sized metal structures is also obtained. Copyright (c) 2011 John Wiley & Sons, Ltd.
引用
收藏
页码:1497 / 1504
页数:8
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