Potential-dependent SERS profile of orthanilic acid on silver electrode

被引：25

作者：

Anto, P. L.

Panicker, C. Yohannan

Varghese, Hema Tresa

Philip, Daizy

机构：

[1] St Thomas Coll, Dept Phys, Trichur 680001, Kerala, India

[2] Mar Ivanios Coll, Dept Phys, Thiruvananthapuram 695015, Kerala, India

[3] Fatima Mata Natl Coll, Dept Phys, Kollam 691001, Kerala, India

来源：

JOURNAL OF RAMAN SPECTROSCOPY | 2006年 / 37卷 / 11期

关键词：

orthanilic acid; vibrational spectra; SERS; silver electrode; ab initio;

D O I：

10.1002/jrs.1547

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

FT-IR and FT-Raman spectra of orthanilic acid were recorded and analyzed. Surface-enhanced Raman scattering (SERS) spectrum was recorded on a silver electrode surface. The vibrational wavenumbers were computed by the ab initio method using HF/6-31G* basis and they were found to be in good agreement with the experimental values. Potential dependence of the SERS profile was studied. The profile was prominent at electrode potentials of -0.3 and -0.8 V. The selective enhancement of different bands showed a change in orientation of the molecule on the silver surface. Copyright (C) 2006 John Wiley & Sons, Ltd.

引用

页码：1265 / 1271

页数：7

共 57 条

[1] ORIENTATIONAL SPECIFICITY OF RAMAN-SCATTERING FROM MOLECULES ADSORBED ON SILVER ELECTRODES [J].