Electrochemical and Surface Enhanced Infrared Absorption Spectroscopy Studies of TEMPO Self-Assembled Monolayers

2021 ◽  
pp. 138263
Author(s):  
Bipinlal Unni ◽  
Ian J. Burgess
Keyword(s):  
Absorption Spectroscopy ◽  
Infrared Absorption ◽  
Self Assembled Monolayers ◽  
Infrared Absorption Spectroscopy ◽  
Surface Enhanced ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Spectroscopy Studies

Ferrocene-terminated alkanethiol self-assembled monolayers: An electrochemical and in situ surface-enhanced infra-red absorption spectroscopy study

2013 ◽  
Vol 107 ◽  
pp. 33-44 ◽  
Author(s):  
Alexander V. Rudnev ◽  
Ulmas Zhumaev ◽  
Toru Utsunomiya ◽  
Chunjie Fan ◽  
Yasuyuki Yokota ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Self Assembled Monolayers ◽  
Spectroscopy Study ◽  
Surface Enhanced ◽  
Infra Red ◽  
Assembled Monolayers ◽  
Self Assembled

Surface Enhanced Infrared Absorption Spectroscopy Studies of DMAP Adsorption on Gold Surfaces

Langmuir ◽  
2009 ◽  
Vol 25 (4) ◽  
pp. 2241-2247 ◽  
Author(s):  
Scott M. Rosendahl ◽  
Brook R. Danger ◽  
J. P. Vivek ◽  
Ian J. Burgess
Keyword(s):  
Absorption Spectroscopy ◽  
Infrared Absorption ◽  
Infrared Absorption Spectroscopy ◽  
Gold Surfaces ◽  
Surface Enhanced ◽  
Spectroscopy Studies

Self-Assembled Monolayers of Thiophenol on Gold as a Novel Substrate for Surface-Enhanced Infrared Absorption

2000 ◽  
Vol 54 (3) ◽  
pp. 366-370 ◽  
Author(s):  
John A. Seelenbinder ◽  
Chris W. Brown ◽  
Daniel W. Urish
Keyword(s):  
Infrared Absorption ◽  
The Self ◽  
Self Assembled Monolayers ◽  
Silicon Substrates ◽  
Self Assembled Monolayer ◽  
Surface Enhanced ◽  
Assembled Monolayers ◽  
Intensity Changes ◽  
Unique Method ◽  
Self Assembled

A unique method of obtaining surface-enhanced infrared absorption (SEIRA) spectra for chemicals that will not chemically attach to a metal surface has been investigated. Surface enhancements are greatest for molecules that bind to metals. In order to achieve greater enhancement for those analytes that do not bind to SEIRA metals, we have investigated self-assembled monolayers as a means of linking analytes to a gold substrate. Monolayers of thiophenol were formed onto sputter-coated gold–silicon substrates. Analytes were deposited onto the thiophenol-coated gold–silicon wafers, and external reflection SEIRA spectra were then measured. Enhancement factors as high as 30-fold compared to those for conventional SEIRA substrates are demonstrated. The self-assembled monolayers on gold substrates are shown to change both relative intensities and band positions of the adsorbed analyte. These intensity changes and frequency shifts show strong interaction of selected analytes with the self-assembled monolayer. This study of phthalates and nitrosubstituted aromatic compounds demonstrates the usefulness of the technique. Spectral changes evident through the use of the thiophenol monolayer are discussed.

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