Research Articles

N,N’-diisopropylthiourea and N,N’-dicyclohexyl-thiourea zinc(II) complexes as precursors for the synthesis of ZnS nanoparticles

N. Moloto, N. Revaprasadu, M.J. Moloto, P. O’Brien, J. Raftery
South African Journal of Science | Vol 105, No 7/8 | a43 | DOI: https://doi.org/10.4102/sajs.v105i7/8.43 | © 2010 N. Moloto, N. Revaprasadu, M.J. Moloto, P. O’Brien, J. Raftery | This work is licensed under CC Attribution 4.0
Submitted: 19 January 2010 | Published: 19 January 2010

About the author(s)

N. Moloto, Department of Chemistry, University of Zululand, Macromolecular Nanotechnology ResearchGroup, National Centrefor Nanostructured Materials
N. Revaprasadu, Department of Chemistry, University of Zululand
M.J. Moloto, School of Chemistry, University of Witwatersrand
P. O’Brien, Department of Chemistry, TheManchesterMaterialsScienceCentre,The University of Manchester
J. Raftery, Department of Chemistry, TheManchesterMaterialsScienceCentre,The University of Manchester

Abstract

The single X-ray crystal structures of zinc (II) complexes of N,N’-diisopropylthiourea and N,N’ dicyclohexylthiourea weredetermined.These complexes, similar to other alkylthioureas, were found to be effective as precursors for the preparation of hexadecylamine-capped ZnS nanoparticles. The complexes are air-stable, easy to prepare and inexpensive. They pyrolyse cleanly to give high-quality ZnS nanoparticles, which show quantum confinement effects in their absorption spectra and close to band-edge emission. Their broad diffraction patterns are typicalof nanosized particles while their transmission electronmicroscopy images showed agglomerates of needle-like platelet nanoparticles.

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