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Hydrosilylation, also called catalytic hydrosilation, describes the addition of Si-H bonds across unsaturated bonds. Ordinarily the reaction is conducted catalytically and usually the substrates are unsaturated organic compounds. Alkenes and alkynes give alkyl and vinyl silanes; aldehydes and ketones give silyl ethers.
The catalytic transformation represents an important method for preparing organosilicon compounds. An idealized transformation is illustrated by the addition of triethylsilane to diphenylacetylene:
Et3SiH + PhC≡CPh → Et3Si(Ph)C=CH(Ph)
The reaction is similar to hydrogenation, and similar catalysts are ...view middle of the document...
H:Si(100) + CH=CH(CH2)7CH3 → Si(100)-(CH2)9CH3
The hydrosilylation reaction can be initiated with UV light at room temperature, or with applied heat (typical reaction temperature 120-200 degrees C), under moisture and oxygen free conditions. 
The resulting monolayer is stable and inert, and prevent oxidation of the base silicon layer. Surfaces of this kind could find applications in areas such as molecular electronics, biochemistry, and direct electronic sensing of biomolecules.
^ James L. Fry, Ronald J. Rahaim Jr., Robert E. Maleczka Jr. "Triethylsilane", Encyclopedia of Reagents for Organic Synthesis, John Wiley & Sons, 2007. DOI: 10.1002/ ISBN 047084289X .rt226.pub2.
^ C. Elschenbroich, Organometallics (2006) Wiley and Sons-VCH: Weinheim. ISBN 978-3-29390-6
^ T. Hayashi and K. Yamasaki, "C–E Bond Formation through Asymmetric Hydrosilylation of Alkenes", Comprehensive Organometallic Chemistry III, Robert H. Crabtree and D. Michael P. Mingos, Editors. Amsterdam: Elsevier, 2007
^ "Photoreactivity of Unsaturated Compounds with Hydrogen-Terminated Silicon (111),” R. L. Cicero, M. R. Linford, C. E. D. Chidsey, Langmuir 16, 5688-5695 (2000)
^ "Alkyl Monolayers on Silicon Prepared from 1-Alkenes and Hydrogen- Terminated Silicon," M. R. Linford, P. Fenter, P. M. Eisenberger and C. E. D....