title: Driving oxygen coordinated ligand exchange at nanocrystal surfaces using trialkylsilylated chalcogenides.
abstract: A general, efficient method is demonstrated for exchanging native oxyanionic ligands on inorganic nanocrystals with functional trimethylsilylated (TMS) chalcogenido ligands. In addition, newly synthesized TMS mixed chalcogenides leverage preferential reactivity of TMS-S bonds over TMS-O bonds, enabling efficient transfer of luminescent nanocrystals into aqueous media with retention of their optical properties.
authors.affiliation: Department of Chemistry, Stanford University, Stanford, CA 94305, USA.
authors.forename: Marissa A
authors.initials: MA
authors.lastname: Caldwell
authors.forename: Aaron E
authors.initials: AE
authors.lastname: Albers
authors.forename: Seth C
authors.initials: SC
authors.lastname: Levy
authors.forename: Teresa E
authors.initials: TE
authors.lastname: Pick
authors.forename: Bruce E
authors.initials: BE
authors.lastname: Cohen
authors.forename: Brett A
authors.initials: BA
authors.lastname: Helms
authors.forename: Delia J
authors.initials: DJ
authors.lastname: Milliron
mesh_terms: D018011:Chalcogens / Q000737:chemistry*; D008024:Ligands; D015394:Molecular Structure; D049329:Nanostructures / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D018011:Chalcogens; D008024:Ligands; D010100:Oxygen