| Download | - View accepted manuscript: Evidence for Initiation of Thermal Reactions of Alkenes with Hydrogen-Terminated Silicon by Surface-Catalyzed Thermal Decomposition of the Reactant (PDF, 968 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1021/la804210d |
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| Author | Search for: Mischki, Trevor K.1; Search for: Lopinski, Gregory P.1; Search for: Wayner, Danial D. M.2 |
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| Affiliation | - National Research Council of Canada. NRC Steacie Institute for Molecular Sciences
- National Research Council of Canada. Executive Offices
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| Format | Text, Article |
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| Subject | thermal reactions; microscopy; imaging |
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| Abstract | New insights into the mechanism of thermal reactions of alkenes with hydrogen terminated silicon are presented. Scanning tunneling microscopy (STM) imaging at the early stages of the reaction of 1-decene with H/Si(111) at 150C confirm this reaction occurs via a propagating radical chain mechanism. In addition, evidence is presented for an initiation mechanism involving degradation of hydrocarbon molecules catalyzed by the silanol surface of Schlenk tubes commonly used in carrying out these reactions. Hydrogen-terminated silicon surfaces are found to be unstable in the “inert” solvent dodecane when heated at 150C in a Pyrex Schlenk tube. By contrast, the surfaces were significantly more stable at the same temperature when reactions were carried out in Teflon (polytetrafluoroethylene or PTFE). The thermal reaction of decene with H/Si(111) was found to proceed more rapidly in Pyrex than in PTFE, consistent with an impurity-based initiation mechanism. |
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| Publication date | 2009 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC publication | This is a non-NRC publication"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC. |
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| NPARC number | 16080387 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 3ef34f90-e7ee-4cd9-8bb3-3927da8893b7 |
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| Record created | 2010-09-21 |
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| Record modified | 2020-04-16 |
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