Separate Metallic Nanoclusters with Ease

  • Author: Xin Su
  • Published: 11 December 2014
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
  • Source / Publisher: Analytical Chemistry/ACS Publications
  • Associated Societies: American Chemical Society (ACS), USA
thumbnail image: Separate Metallic Nanoclusters with Ease

Noble metal clusters, especially those of gold, can be precisely synthesized on an atomic level as stable ligand-protected species, such as Au25(SR)18, Au38(SR)24, and Au144(SR)60 (SR denotes thiolates). While these clusters exhibit interesting electronic properties, their isolation is a non-trivial problem.


Robin H. A. Ras, Aalto University, Espoo, Finland, and Thalappil Pradeep, Indian Institute of Technology Madras, Chennai, India, and colleagues have found that a variety of gold clusters can be purified easily using thin-layer chromatography (TLC), an inexpensive technique widely used in organic chemistry. The researchers successfully demonstrate the separation of gold clusters with varied core sizes and protective ligands by taking advantage of differences in polarity.


By revealing the separation power of TLC for gold nanoclusters with atomic precision, the study greatly extends the scope of a classic analytical technique. In addition, it is also readily available as a convenient tool to monitor the process of gold cluster synthesis.


 

Article Views: 5743

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH