Int. J. Mol. Sci. 2011, 12(2), 1245-1258; doi:10.3390/ijms12021245
Article

Molecular Arrangement in Self-Assembled Azobenzene-Containing Thiol Monolayers at the Individual Domain Level Studied through Polarized Near-Field Raman Spectroscopy

Marc Chaigneau 1 email, Gennaro Picardi 1,2 email and Razvigor Ossikovski 1,* email
1 LPICM, Ecole Polytechnique, CNRS, 91128 Palaiseau, France 2 NCSR, School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
* Author to whom correspondence should be addressed.
Received: 27 January 2011; in revised form: 10 February 2011 / Accepted: 11 February 2011 / Published: 21 February 2011
(This article belongs to the Special Issue Molecular Symmetry)
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Abstract: 6-[4-(phenylazo)phenoxy]hexane-1-thiol self-assembled monolayers deposited on a gold surface form domain-like structures possessing a high degree of order with virtually all the molecules being identically oriented with respect to the surface plane. We show that, by using polarized near-field Raman spectroscopy, it is possible to derive the Raman scattering tensor of the ordered layer and consequently, the in-plane molecular orientation at the individual domain level. More generally, this study extends the application domain of the near-field Raman scattering selection rules from crystals to ordered organic structures.
Keywords: raman spectroscopy; TERS; azobenzene; polarization

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MDPI and ACS Style

Chaigneau, M.; Picardi, G.; Ossikovski, R. Molecular Arrangement in Self-Assembled Azobenzene-Containing Thiol Monolayers at the Individual Domain Level Studied through Polarized Near-Field Raman Spectroscopy. Int. J. Mol. Sci. 2011, 12, 1245-1258.

AMA Style

Chaigneau M, Picardi G, Ossikovski R. Molecular Arrangement in Self-Assembled Azobenzene-Containing Thiol Monolayers at the Individual Domain Level Studied through Polarized Near-Field Raman Spectroscopy. International Journal of Molecular Sciences. 2011; 12(2):1245-1258.

Chicago/Turabian Style

Chaigneau, Marc; Picardi, Gennaro; Ossikovski, Razvigor. 2011. "Molecular Arrangement in Self-Assembled Azobenzene-Containing Thiol Monolayers at the Individual Domain Level Studied through Polarized Near-Field Raman Spectroscopy." Int. J. Mol. Sci. 12, no. 2: 1245-1258.

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