Literature DB >> 21103582

Driving oxygen coordinated ligand exchange at nanocrystal surfaces using trialkylsilylated chalcogenides.

Marissa A Caldwell1, Aaron E Albers, Seth C Levy, Teresa E Pick, Bruce E Cohen, Brett A Helms, Delia J Milliron.   

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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Year:  2010        PMID： 21103582     DOI： 10.1039/c0cc02220a

Source DB:  PubMed          Journal:  Chem Commun (Camb)        ISSN： 1359-7345            Impact factor:   6.222


  4 in total

1.  Covalent Protein Labeling and Improved Single-Molecule Optical Properties of Aqueous CdSe/CdS Quantum Dots.

Authors:  Sara M Wichner; Victor R Mann; Alexander S Powers; Maya A Segal; Mustafa Mir; Jigar N Bandaria; Mark A DeWitt; Xavier Darzacq; Ahmet Yildiz; Bruce E Cohen
Journal:  ACS Nano       Date:  2017-06-21       Impact factor: 15.881

2.  Alternating layer addition approach to CdSe/CdS core/shell quantum dots with near-unity quantum yield and high on-time fractions.

Authors:  Andrew B Greytak; Peter M Allen; Wenhao Liu; Jing Zhao; Elizabeth R Young; Zoran Popović; Brian Walker; Daniel G Nocera; Moungi G Bawendi
Journal:  Chem Sci       Date:  2012-06-01       Impact factor: 9.825

3.  Ligand exchange and the stoichiometry of metal chalcogenide nanocrystals: spectroscopic observation of facile metal-carboxylate displacement and binding.

Authors:  Nicholas C Anderson; Mark P Hendricks; Joshua J Choi; Jonathan S Owen
Journal:  J Am Chem Soc       Date:  2013-11-26       Impact factor: 15.419

4.  Chemically directing d-block heterometallics to nanocrystal surfaces as molecular beacons of surface structure.

Authors:  Evelyn L Rosen; Keith Gilmore; April M Sawvel; Aaron T Hammack; Sean E Doris; Shaul Aloni; Virginia Altoe; Dennis Nordlund; Tsu-Chien Weng; Dimosthenis Sokaras; Bruce E Cohen; Jeffrey J Urban; D Frank Ogletree; Delia J Milliron; David Prendergast; Brett A Helms
Journal:  Chem Sci       Date:  2015-07-28       Impact factor: 9.825
  4 in total

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