The surfaces of nanoparticles often dictate their physical properties, and synthetic control over this is an ongoing challenge.  Although thiol-based molecules are commonly used to stabilize gold nanoparticles (Au NPs), we have used thiourea-based molecules because they allow for the isolation of monomeric metal complexes with gold.  This method provides preparative routes using molecular precursors for the synthesis of Au NP's, in which surfactants are incorporated into the precursor molecule.  This method is advantageous because it eliminates the need for additional surfactants in the reaction mixture.  In this presentation, gold nanoparticles were prepared from the reactions of a series of Au(I)-thiourea complexes with reducing agents.  Formation of nanoparticles was monitored using spectroscopic methods and confirmed using transmission electron microscopy (TEM).

Preparation of Au(I)-thiourea complexes as precursors for gold nanoparticles

245th National Meeting (2013)

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