High yield, large scale synthesis of thiolate-protected Ag7 clusters

Zhikun Wu; Eric Lanni; Wenqian Chen; Mark E Bier; Danith Ly; Rongchao Jin

doi:10.1021/ja907627f

High yield, large scale synthesis of thiolate-protected Ag7 clusters

J Am Chem Soc. 2009 Nov 25;131(46):16672-4. doi: 10.1021/ja907627f.

Authors

Zhikun Wu¹, Eric Lanni, Wenqian Chen, Mark E Bier, Danith Ly, Rongchao Jin

Affiliation

¹ Carnegie Mellon University, Department of Chemistry, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, USA.

PMID: 19886625
DOI: 10.1021/ja907627f

Abstract

We report a high yielding synthesis of truly monodisperse, thiolate-protected silver clusters via a rationally designed approach. The cluster composition was determined by electrospray ionization (ESI) mass spectrometry to be Ag(7)(DMSA)(4), where DMSA represents meso-2,3-dimercaptosuccinic acid. The Ag(7) thiolate clusters exhibit distinct optical properties. The approach developed in this work provides some insight into the cluster growth kinetics and may be extendable to the synthesis of other sized silver nanoclusters.