Synthesis and characterization of gold atomic clusters by the two-phase method

In this work we present a simple procedure for the production of gold atomic clusters by means of a modification of the Brust’s two-phase method, using tetrahexylammonium bromide as capping agent. The gold atomic clusters obtained have the following formula: Au n , with , where n is the number of go...

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Veröffentlicht in:	The European physical journal. D, Atomic, molecular and optical physics (Print) Atomic, molecular and optical physics (Print), 2009-04, Vol.52 (1-3), p.23-26
Hauptverfasser:	Rodríguez-Vázquez, M. J., Vázquez-Vázquez, C., Rivas, J., López-Quintela, M. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applications of Nonlinear Dynamics and Chaos Theory Atomic Atomic and molecular clusters Atomic and molecular physics Exact sciences and technology Experimental Production of Clusters Molecular Optical and Plasma Physics Optical properties of clusters Physical Chemistry Physics Physics and Astronomy Quantum Information Technology Quantum Physics Spectroscopy and geometrical structure of clusters Spectroscopy/Spectrometry Spintronics Studies of special atoms, molecules and their ions clusters
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Zusammenfassung:	In this work we present a simple procedure for the production of gold atomic clusters by means of a modification of the Brust’s two-phase method, using tetrahexylammonium bromide as capping agent. The gold atomic clusters obtained have the following formula: Au n , with , where n is the number of gold atoms per cluster. We report the formation of different species at different stages of the reduction reaction. Au clusters were characterized by TEM, MALDI-TOF mass spectrometry and UV-vis spectroscopy. Gold clusters are stable in solution after several years of preparation.
ISSN:	1434-6060 1434-6079
DOI:	10.1140/epjd/e2009-00061-5