Issue 17, 2010
From the journal:

Physical Chemistry Chemical Physics

Self-assembled monolayers of benzylmercaptan and para-cyanobenzylmercaptan on gold: surface infrared spectroscopic characterization†

K. Rajalingam,a   L. Hallmann,a   T. Strunskus,bc   A. Bashir,c   C. Wöll*c  and  F. Tuczek*a  

* Corresponding authors

a Institut für Anorganische Chemie, Christian-Albrechts Universität Kiel, Max-Eyth-Straße 2, 24098 Kiel, Germany

b Lehrstuhl für Materialverbünde, Technische Fakultät der Christian-Albrechts-Universität zu Kiel, Kaiserstraße 2, 24143 Kiel, Germany

c Institut für Funktionelle Grenzflächen, Forschungszentrum Karlsruhe, 76021 Karlsruhe, Germany

Abstract

Self-assembled monolayers (SAMs) on gold substrates were prepared from benzylmercaptan (BM) and para-cyanobenzylmercaptan (pCBM), and the resulting surfaces were investigated using conventional infrared reflection-absorption spectroscopy (IRRAS) as well as polarization modulation infrared reflection-absorption spectroscopy (PM-IRRAS). IRRAS data are analyzed by comparison with transmission IR spectra and theoretical (DFT) simulations. The spectroscopic results indicate the presence of well-ordered monolayers of BM and pCBM with an orientation perpendicular to the surface. IRRAS and PM-IRRAS data are compared to each other and the respective merits of both methods are discussed.

Graphical abstract: Self-assembled monolayers of benzylmercaptan and para-cyanobenzylmercaptan on gold: surface infrared spectroscopic characterization

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Article information

DOI
https://doi.org/10.1039/B923628G
Article type
Paper
Submitted
10 Nov 2009
Accepted
08 Feb 2010
First published
05 Mar 2010

Phys. Chem. Chem. Phys., 2010,12, 4390-4399

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Self-assembled monolayers of benzylmercaptan and para-cyanobenzylmercaptan on gold: surface infrared spectroscopic characterization

K. Rajalingam, L. Hallmann, T. Strunskus, A. Bashir, C. Wöll and F. Tuczek, Phys. Chem. Chem. Phys., 2010, 12, 4390 DOI: 10.1039/B923628G

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