Observation of no significant surface enhancement of Raman scattering from benzoic acid molecules on mercury

Wang, Shou-Yih; Chou, Shu-Ting; Liang, N. T.

doi:10.1002/jrs.1250190511

Cited by 9 publications

(1 citation statement)

References 11 publications

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“…In other cases, experimental conditions were not conducive to making reliable judgment as to the reasons for the observation of sufficiently intensive signals. The data for mercury [140,141] and cadmium [142] had not been reproduced in other works [10,12,14,143]. With nickel in vacuum, where the most intensive SERS spectra for pyridine were observed [133], the surface could have been oxidized, which follows from similarity of excitation spectra of RS of pyridine on nickel and nickel(I) oxide.…”

Section: Effect Of Metal Nature On Sers Characteristicsmentioning

confidence: 74%

Adatom Hypothesis as a Predominant Mechanism of Surface Enhanced Raman Scattering: A Review of Experimental Argumentation

Lazorenko-Manevich¹

2005

Russ J Electrochem

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A contemporary review of research concerning the mechanism of surface enhanced Raman scattering (SERS) is presented and it is stated that this problem is yet to be solved. The necessity to yet once again analyze some of the familiar experimental observations and the deep-rooted beliefs and revise quantitative evaluations of SERS enhancement via major mechanisms (electromagnetic and chemical) with allowance made for most important experimental characteristics of SERS is substantiated. The characteristics are enumerated and the role they play in the above evaluations is sketched. Attention is focused mainly on electrochemical aspects of SERS problem, which to a large extent define the content and salient features of SERS and provide basic experimental justification for the so-called adatom hypothesis.

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Section: Effect Of Metal Nature On Sers Characteristicsmentioning

confidence: 74%

Adatom Hypothesis as a Predominant Mechanism of Surface Enhanced Raman Scattering: A Review of Experimental Argumentation

Lazorenko-Manevich¹

2005

Russ J Electrochem

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Molecular structure, spectroscopic (FTIR, FTIR gas phase, FT‐Raman) first‐order hyperpolarizability and HOMO–LUMO analysis of 4‐methoxy‐2‐methyl benzoic acid

Meganathan

Sebastian

Kurt

et al. 2010

J Raman Spectroscopy

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Vibrational spectral analysis was carried out for 4-methoxy-2-methyl benzoic acid (4M2MBA) by using Fourier transform infrared (FT-IR) (solid, gas phase) and FT-Raman spectroscopy in the range of 400-4000 and 10-3500 cm −1 respectively. The effects of molecular association through O-H· · ·O hydrogen bonding have been described by the single dimer structure. The theoretical computational density functional theory (DFT) and Hatree-Fock (HF) method were performed at 6-311++G(d,p) levels to derive the equilibrium geometry, vibrational wavenumbers, infrared intensities and Raman scattering activities. The scaled theoretical wavenumbers were also shown to be in good agreement with experimental data. The first-order hyperpolarizability (β 0 ) of this novel molecular system and related properties (β, α 0 and α) of 4M2MBA are calculated using the B3LYP/cc-pvdz basis set, based on the finite-field approach. A detailed interpretation of the infrared and Raman spectra of 4M2MBA is reported. The theoretical spectrograms for FT-IR and FT-Raman spectra of the title molecule were also constructed and compared with the experimental one.

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Vibrational spectra and assignments of 5-amino-2-chlorobenzoic acid by ab initio Hartree–Fock and density functional methods

Sundaraganesan

Joshua²,

Settu³

2007

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Observation of no significant surface enhancement of Raman scattering from benzoic acid molecules on mercury

Cited by 9 publications

References 11 publications

Adatom Hypothesis as a Predominant Mechanism of Surface Enhanced Raman Scattering: A Review of Experimental Argumentation

Adatom Hypothesis as a Predominant Mechanism of Surface Enhanced Raman Scattering: A Review of Experimental Argumentation

Molecular structure, spectroscopic (FTIR, FTIR gas phase, FT‐Raman) first‐order hyperpolarizability and HOMO–LUMO analysis of 4‐methoxy‐2‐methyl benzoic acid

Vibrational spectra and assignments of 5-amino-2-chlorobenzoic acid by ab initio Hartree–Fock and density functional methods

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