Document Detail


Room temperature hydrosilylation of silicon nanocrystals with bifunctional terminal alkenes.
MedLine Citation:
PMID:  23312033     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
H-terminated Si nanocrystals undergo room temperature hydrosilylation with bifunctional alkenes with distal polar moieties-ethyl ester, methyl ester, or carboxylic acids-without the aid of light or added catalyst. The passivated Si nanocrystals exhibit bright photoluminescence (PL) and disperse in polar solvents, including water. We propose a reaction mechanism in which ester or carboxylic acid groups facilitate direct nucleophilic attack of the highly curved Si surface of the nanocrystals by the alkene.
Authors:
Yixuan Yu; Colin M Hessel; Timothy D Bogart; Matthew G Panthani; Michael R Rasch; Brian A Korgel
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2013-01-24
Journal Detail:
Title:  Langmuir : the ACS journal of surfaces and colloids     Volume:  29     ISSN:  1520-5827     ISO Abbreviation:  Langmuir     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-02-05     Completed Date:  2013-07-29     Revised Date:  2014-02-06    
Medline Journal Info:
Nlm Unique ID:  9882736     Medline TA:  Langmuir     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1533-40     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Alkenes / chemistry*
Carboxylic Acids / chemistry
Esters / chemistry
Molecular Structure
Nanoparticles / chemistry*
Particle Size
Silicon / chemistry*
Surface Properties
Temperature*
Grant Support
ID/Acronym/Agency:
R01 CA132032/CA/NCI NIH HHS; R01 CA132032/CA/NCI NIH HHS
Chemical
Reg. No./Substance:
0/Alkenes; 0/Carboxylic Acids; 0/Esters; Z4152N8IUI/Silicon
Comments/Corrections

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