Issue 1, 2011
From the journal:

Chemical Communications

Driving oxygen coordinated ligand exchange at nanocrystal surfaces using trialkylsilylated chalcogenides†‡

Marissa A. Caldwell,b   Aaron E. Albers,a   Seth C. Levy,a   Teresa E. Pick,a   Bruce E. Cohen,a   Brett A. Helms*a  and  Delia J. Milliron*a  

* Corresponding authors

a The Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, USA
E-mail: bahelms@lbl.gov, dmilliron@lbl.gov
Fax: +1 510 486 6166
Tel: +1 510 486 6723

b Department of Chemistry, Stanford University, Stanford, USA

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.

Graphical abstract: Driving oxygen coordinated ligand exchange at nanocrystal surfaces using trialkylsilylated chalcogenides

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Article information

DOI
https://doi.org/10.1039/C0CC02220A
Article type
Communication
Submitted
30 Jun 2010
Accepted
11 Nov 2010
First published
23 Nov 2010

Chem. Commun., 2011,47, 556-558

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Driving oxygen coordinated ligand exchange at nanocrystal surfaces using trialkylsilylated chalcogenides

M. A. Caldwell, A. E. Albers, S. C. Levy, T. E. Pick, B. E. Cohen, B. A. Helms and D. J. Milliron, Chem. Commun., 2011, 47, 556 DOI: 10.1039/C0CC02220A

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