Molecular Structure and Solvent Factors Influencing SERS on Planar Gold Substrates
| العنوان: | Molecular Structure and Solvent Factors Influencing SERS on Planar Gold Substrates |
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| المؤلفون: | Erik D. Emmons, Jason A. Guicheteau, Augustus W. Fountain, Neal D. Kline, Steven D. Christesen, Ashish Tripathi |
| المصدر: | The Journal of Physical Chemistry C. 122:10205-10216 |
| بيانات النشر: | American Chemical Society (ACS), 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Thiophenol, Inorganic chemistry, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Solvent, Metal, symbols.namesake, chemistry.chemical_compound, General Energy, Adsorption, chemistry, visual_art, symbols, visual_art.visual_art_medium, Molecule, Physical and Theoretical Chemistry, Solubility, 0210 nano-technology, Acetonitrile, Raman scattering |
| الوصف: | Adsorption of analytes on surface enhanced Raman scattering (SERS) active nanometallic substrates is influenced by a variety of factors, including analyte–metal interactions, analyte–solvent interactions, and competition for the limited number of available sites on the surface. In this article, we present a study of the effects of solubility on the binding of analytes to metallic substrates as well as an equation to describe the effect of these interactions on the observed SERS signal. A variety of solvents are used to demonstrate the effect on binding of 1,2-bis(4-pyridyl)-ethylene and thiophenol to nanostructured gold SERS substrates. These solvents include mixtures of ethanol/water and acetonitrile/water with different ratios of organic/water fractions. In our previous work, two types of sites were observed on nanostructured gold substrates—nucleophilic and electrophilic—which tend to bind with analytes that are either electron poor or electron rich, respectively. The present study shows that the compo... |
| تدمد: | 1932-7455 1932-7447 |
| DOI: | 10.1021/acs.jpcc.8b00353 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::52ad3f747fd3d381de374d26e73464de https://doi.org/10.1021/acs.jpcc.8b00353 |
| رقم الانضمام: | edsair.doi...........52ad3f747fd3d381de374d26e73464de |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19327455 19327447 |
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| DOI: | 10.1021/acs.jpcc.8b00353 |