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Thermally Induced Silane Dehydrocoupling on Silicon Nanostructures

Organic trihydridosilanes can be grafted to hydrogen‐terminated porous Si nanostructures with no catalyst. The reaction proceeds efficiently at 80 °C, and it shows little sensitivity to air or water impurities. The modified surfaces are stable to corrosive aqueous solutions and common organic solven...

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Autores principales: Kim, Dokyoung, Joo, Jinmyoung, Pan, Youlin, Boarino, Alice, Jun, Yong Woong, Ahn, Kyo Han, Arkles, Barry, Sailor, Michael J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5074321/
https://www.ncbi.nlm.nih.gov/pubmed/27101022
http://dx.doi.org/10.1002/anie.201601010
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author Kim, Dokyoung
Joo, Jinmyoung
Pan, Youlin
Boarino, Alice
Jun, Yong Woong
Ahn, Kyo Han
Arkles, Barry
Sailor, Michael J.
author_facet Kim, Dokyoung
Joo, Jinmyoung
Pan, Youlin
Boarino, Alice
Jun, Yong Woong
Ahn, Kyo Han
Arkles, Barry
Sailor, Michael J.
author_sort Kim, Dokyoung
collection PubMed
description Organic trihydridosilanes can be grafted to hydrogen‐terminated porous Si nanostructures with no catalyst. The reaction proceeds efficiently at 80 °C, and it shows little sensitivity to air or water impurities. The modified surfaces are stable to corrosive aqueous solutions and common organic solvents. Octadecylsilane H(3)Si(CH(2))(17)CH(3), and functional silanes H(3)Si(CH(2))(11)Br, H(3)Si(CH(2))(9)CH=CH(2), and H(3)Si(CH(2))(2)(CF(2))(5)CF(3) are readily grafted. When performed on a mesoporous Si wafer, the perfluoro reagent yields a superhydrophobic surface (contact angle 151°). The bromo‐derivative is converted to azide, amine, or alkyne functional surfaces via standard transformations, and the utility of the method is demonstrated by loading of the antibiotic ciprofloxaxin (35 % by mass). When intrinsically photoluminescent porous Si films or nanoparticles are used, photoluminescence is retained in the grafted products, indicating that the chemistry does not introduce substantial nonradiative surface traps.
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spelling pubmed-50743212016-11-04 Thermally Induced Silane Dehydrocoupling on Silicon Nanostructures Kim, Dokyoung Joo, Jinmyoung Pan, Youlin Boarino, Alice Jun, Yong Woong Ahn, Kyo Han Arkles, Barry Sailor, Michael J. Angew Chem Int Ed Engl Communications Organic trihydridosilanes can be grafted to hydrogen‐terminated porous Si nanostructures with no catalyst. The reaction proceeds efficiently at 80 °C, and it shows little sensitivity to air or water impurities. The modified surfaces are stable to corrosive aqueous solutions and common organic solvents. Octadecylsilane H(3)Si(CH(2))(17)CH(3), and functional silanes H(3)Si(CH(2))(11)Br, H(3)Si(CH(2))(9)CH=CH(2), and H(3)Si(CH(2))(2)(CF(2))(5)CF(3) are readily grafted. When performed on a mesoporous Si wafer, the perfluoro reagent yields a superhydrophobic surface (contact angle 151°). The bromo‐derivative is converted to azide, amine, or alkyne functional surfaces via standard transformations, and the utility of the method is demonstrated by loading of the antibiotic ciprofloxaxin (35 % by mass). When intrinsically photoluminescent porous Si films or nanoparticles are used, photoluminescence is retained in the grafted products, indicating that the chemistry does not introduce substantial nonradiative surface traps. John Wiley and Sons Inc. 2016-04-21 2016-05-23 /pmc/articles/PMC5074321/ /pubmed/27101022 http://dx.doi.org/10.1002/anie.201601010 Text en © 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs (http://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Communications
Kim, Dokyoung
Joo, Jinmyoung
Pan, Youlin
Boarino, Alice
Jun, Yong Woong
Ahn, Kyo Han
Arkles, Barry
Sailor, Michael J.
Thermally Induced Silane Dehydrocoupling on Silicon Nanostructures
title Thermally Induced Silane Dehydrocoupling on Silicon Nanostructures
title_full Thermally Induced Silane Dehydrocoupling on Silicon Nanostructures
title_fullStr Thermally Induced Silane Dehydrocoupling on Silicon Nanostructures
title_full_unstemmed Thermally Induced Silane Dehydrocoupling on Silicon Nanostructures
title_short Thermally Induced Silane Dehydrocoupling on Silicon Nanostructures
title_sort thermally induced silane dehydrocoupling on silicon nanostructures
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5074321/
https://www.ncbi.nlm.nih.gov/pubmed/27101022
http://dx.doi.org/10.1002/anie.201601010
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