Palladium-catalyzed coupling reactions for the functionalization of Si surfaces: superior stability of alkenyl monolayers

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Date
2013
Authors
Collins, Gillian
O'Dwyer, Colm
Morris, Michael A.
Holmes, Justin D.
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Volume Title
Publisher
American Chemical Society
Published Version
10.1021/la402480f
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Abstract
Palladium-catalyzed Suzuki, Heck, and Sonogashira coupling reactions were studied as reaction protocols for organic modification of Si surfaces. These synthetically useful protocols allow for surface modification of alkene, alkyne, and halide terminated surfaces. Surface oxidation and metal contamination were assessed by X-ray photoelectron spectroscopy. The nature of the primary passivation layer was an important factor in the oxidation resistance of the Si surface during the secondary functionalization. Specifically, the use of alkynes as the primary functionalization layer gave superior stability compared to alkene analogues. The ability to utilize Pd-catalyzed coupling chemistries on Si surfaces opens great versatility for potential molecular and nanoscale electronics and sensing/biosensing applications.
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Keywords
Catalysis , Reaction kinetics , Inorganic reaction mechanisms , Palladium catalysis , Silicon
Citation
COLLINS, G., O’DWYER, C., MORRIS, M. & HOLMES, J. D. 2013. Palladium-Catalyzed Coupling Reactions for the Functionalization of Si Surfaces: Superior Stability of Alkenyl Monolayers. Langmuir, 29, 11950-11958. doi: 10.1021/la402480f
Link to publisher’s version
http://pubs.acs.org/doi/abs/10.1021/la402480f
URI
https://hdl.handle.net/10468/1353
Collections
Chemistry - Journal Articles
Tyndall National Institute - Journal Articles
Copyright
© 2013, American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir, copyright © American Chemical Society after peer review and technical editing by the publisher.To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/la402480f