Driving oxygen coordinated ligand exchange at nanocrystal surfaces using trialkylsilylated chalcogenides |
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| Authors: | Caldwell Marissa A Albers Aaron E Levy Seth C Pick Teresa E Cohen Bruce E Helms Brett A Milliron Delia J |
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| Institution: | Department of Chemistry, Stanford University, Stanford, CA 94305, USA. |
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| 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. |
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