Issue 18, 2013
From the journal:

Chemical Communications

Achiral CdSe quantum dots exhibit optical activity in the visible region upon post-synthetic ligand exchange with d- or l-cysteine†

Urice Tohgha,a   Krisztina Vargaa  and  Milan Balaz*a  

* Corresponding authors

a University of Wyoming, 1000 E. University Avenue, Laramie, USA
E-mail: mbalaz@uwyo.edu
Fax: +1 307 766-2807
Tel: +1 307 766-4330

Abstract

Semiconductor cadmium selenide (CdSe) quantum dots (QDs) exhibited mirror-image circular dichroism (CD) spectra in the visible region (350–570 nm) after replacing the trioctylphosphine oxide/oleic acid ligands on achiral nanocrystals with D- and L-cysteines. Chiroptical properties of cysteine-capped CdSe QDs depend on their size and can be fine-tuned by changing the radius of QDs.

Graphical abstract: Achiral CdSe quantum dots exhibit optical activity in the visible region upon post-synthetic ligand exchange with d- or l-cysteine

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Article information

DOI
https://doi.org/10.1039/C3CC37987F
Article type
Communication
Submitted
05 Nov 2012
Accepted
20 Jan 2013
First published
22 Jan 2013

Chem. Commun., 2013,49, 1844-1846

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Achiral CdSe quantum dots exhibit optical activity in the visible region upon post-synthetic ligand exchange with D- or L-cysteine

U. Tohgha, K. Varga and M. Balaz, Chem. Commun., 2013, 49, 1844 DOI: 10.1039/C3CC37987F

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