Room temperature hydrosilylation of silicon nanocrystals with bifunctional terminal alkenes.

ABSTRACT: 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.

SUBMITTER: Yu Y 

PROVIDER: S-EPMC3580235 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature