title: Borane-catalyzed room-temperature hydrosilylation of alkenes/alkynes on silicon nanocrystal surfaces.
abstract: Room-temperature borane-catalyzed functionalization of hydride-terminated silicon nanocrystals (H-SiNCs) with alkenes/alkynes is reported. This new methodology affords formation of alkyl and alkynyl surface monolayers of varied chain lengths (i.e., C5-C12). The present study also indicates alkynes react more readily with H-SiNC surfaces than equivalent alkenes. Unlike other toxic transition-metal catalysts, borane or related byproducts can be readily removed from the functionalized SiNCs. The new method affords stable luminescent alkyl/alkenyl-functionalized SiNCs.
authors.affiliation: Department of Chemistry, University of Alberta , 11227 Saskatchewan Drive, Edmonton, Alberta Canada T6G 2G2.
authors.forename: Tapas K
authors.initials: TK
authors.lastname: Purkait
authors.forename: Muhammad
authors.initials: M
authors.lastname: Iqbal
authors.forename: Maike H
authors.initials: MH
authors.lastname: Wahl
authors.forename: Kerstin
authors.initials: K
authors.lastname: Gottschling
authors.forename: Christina M
authors.initials: CM
authors.lastname: Gonzalez
authors.forename: Muhammad Amirul
authors.initials: MA
authors.lastname: Islam
authors.forename: Jonathan G C
authors.initials: JG
authors.lastname: Veinot