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Chem. Commun., 2003, 1700 - 1701, DOI: 10.1039/b302266h
A low temperature cluster condensation approach to CdS nanocrystals: oxidative aggregation of [Cd10S4Br4(SR)12]4– with sulfur
Frank E. Osterloh and Daniel P. Hewitt
The cluster salt [N(C2H5)4]4[Cd10S4Br4(Sp-Tol)12] reacts with six equivalents of sulfur in dimethylformamide at 140 °C to produce polycrystalline (wurtzite type) CdS nanoparticles of 5.8 nm mean diameter, which on their surface are ligated with p-tolylthiolate ligands, dimethylformamide and water; UV/vis, PL, 1H- and 113Cd-NMR spectra recorded during various stages of the synthesis indicate that the CdS nanoparticles are formed by a cluster condensation process.
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