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Application of X-ray absorption spectroscopy to the structural characterisation of monodispersed benzotriazole coatings on partly oxidised copper thin films

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Application of X-ray absorption spectroscopy to the structural characterisation of monodispersed benzotriazole coatings on partly oxidised copper thin films

Content Provider	Royal Society of Chemistry (RSC)
Author	Cupertino, Domenico C. Pizzini, Stefania Roberts, Kevin J. Dring, Ian S. Oldman, Richard J.
Copyright Year	1993
Abstract	X-Ray absorption spectroscopy using synchrotron radiation has been used to probe the structure of Copper-benzotriazole complexes and that of the benzotriazole involved in surface films following adsorption onto partly oxidised Cu thin films. Data recorded at the Cu-K edge and, using 4- and 5-bromo-substituted benzotriazole, at the Br-K edge are consistent with the CuI atoms coordinated to three or four benzotriazole molecules through the N(2) position on the triazole ring. Examination of the thin films using glancing-angle geometry suggests the adsorbed film to be only a few monolayers in thickness with the benzotriazole molecules coordinated to CuI ions in the oxidised Cu surface forming a hydrogen-bonded surface complex similar, in part, to that proposed by Fang et al. (Surf. Sci., 1986, 176, 476). At the interface the surface reaction appears to involve a topotactic arrangement with the (100) plane of Cu2O where the in-plane Cu–Cu interatomic distances closely match that expected for the surface complex. The overall limitations of the glancing-angle technique to the characterisation of this kind of interfacial system are discussed.
Starting Page	811
Ending Page	819
Page Count	9
File Format	PDF
ISSN	09599428
Volume Number	3
Issue Number	8
Journal	Journal of Materials Chemistry
DOI	10.1039/JM9930300811
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Cu Fang Spectroscopy Synchrotron radiation Benzotriazole Adsorption Triazole Molecular geometry
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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