Martín, S., Takashima, Y., Lin, C.-G., Song, Y.-F., Miras, H. N. and Cronin, L. (2019) Integrated synthesis of gold nanoparticles coated with polyoxometalate clusters. Inorganic Chemistry, 58(7), pp. 4110-4116. (doi: 10.1021/acs.inorgchem.8b03013) (PMID:30869513)
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Abstract
Polyoxometalates (POMs) have been found to be good end-capping ligands for gold nanoparticles (AuNPs). Herein, we introduce a new synthetic method to synthesize gold nanoparticle–POM hybrids by heating a solution of AuNO3(PMe3) in acetonitrile in the presence of appropriate POM species with tetrabutylammonium (TBA) as a countercation at 120 °C in a microwave. This method allowed us to produce POM-capped AuNPs without over-reduction of the solution causing decomposition or reorganization of the POMs. Analysis of the resulting material by transmission electron microscopy showed that the POM’s size, charge, and functionality are key factors controlling the resulting POM–AuNP hybrid structure. Additionally, the reaction was monitored by electrospray ionization mass spectrometry (ESI-MS), ultraviolet–visible spectroscopy, and dynamic light scattering. The ESI-MS studies reveal crucial information regarding the nature of the reaction that takes place, showing the cation exchange between Au(I) and TBA cations, followed by self-reduction of the Me3PAu(I)–POM complex.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Martin Marti, Mr Sergio and Moiras, Professor Haralampos and Takashima, Dr Yohei and Cronin, Professor Lee |
Authors: | Martín, S., Takashima, Y., Lin, C.-G., Song, Y.-F., Miras, H. N., and Cronin, L. |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Inorganic Chemistry |
Publisher: | American Chemical Society |
ISSN: | 0020-1669 |
ISSN (Online): | 1520-510X |
Published Online: | 14 March 2019 |
Copyright Holders: | Copyright © 2019 American Chemical Society |
First Published: | First published in Inorganic Chemistry 58(7):4110-4116 |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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