Spectroscopic and Spectroelectrochemical Characterization of Acceptor-Sigma Spacer-Donor Monolayers

Sarkar, Smita and Sampath, S (2006) Spectroscopic and Spectroelectrochemical Characterization of Acceptor-Sigma Spacer-Donor Monolayers. In: Langmuir, 22 (7). 3396 -3403.

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Abstract

A novel self-assembled monolayer based on benzoquinone-sigma spacer-ferrocene assembly has been prepared on the surface of gold. The preceding paper gives the reaction conditions for the synthesis of the monolayer and a detailed electrochemical characterization of the assembly. In the present paper, the monolayer structure and the orientation of the redox moieties are followed by a detailed spectroscopic analysis. The monolayer has been characterized by reflectance absorbance IR spectroscopy, FT-Raman spectroscopy, and X-ray photoelectron spectroscopy at every step of modification. Additionally, spectroelectrochemical studies have been carried out by coupling Raman spectroscopy with cyclic voltammetry to elucidate the structural variations associated with the monolayer as a function of applied dc bias.

Item Type:	Journal Article
Publication:	Langmuir
Publisher:	American Chemical Society
Additional Information:	Copyright of this article belongs to American Chemical Society.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	22 May 2006
Last Modified:	19 Sep 2010 04:26
URI:	http://eprints.iisc.ac.in/id/eprint/6758

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