First Evidence of Au-CH3 Bonding in Superatomic Au13 Clusters

IF 2.2 4区 化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR
Matteo Bevilacqua, Marco Roverso, Sara Bogialli, Claudia Graiff, Andrea Biffis
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引用次数: 0

Abstract

Chemical reduction of a dinuclear [(di-NHC)Au2Cl2(di-NHC)] complex (NHC=imidazol-2-ylidene), using excess NaBH4 as reducing agent in presence of dichloromethane (DCM) as solvent, provides a molecular cluster with formula [Au13(di-NHC)5(CH3)2]Cl3, exhibiting covalent bonds between gold atoms of the cluster core and methyl groups. The presence of Au-CH3 bonds, which is unprecedented in gold cluster chemistry, is confirmed by high resolution mass spectrometry (HRMS), NMR and the reactivity of the reported cluster in solid state. The cluster has been further characterized with single crystal X-ray diffractometry, UV-Vis and emission spectroscopies. The cluster displays remarkable stability in solution, which is indicative of the possible role played by Au-CH3 bond formation in the conventional preparation of molecular gold nanoclusters by reduction with excess borohydride in DCM.

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来源期刊
European Journal of Inorganic Chemistry
European Journal of Inorganic Chemistry 化学-无机化学与核化学
CiteScore
4.30
自引率
4.30%
发文量
419
审稿时长
1.3 months
期刊介绍: The European Journal of Inorganic Chemistry (2019 ISI Impact Factor: 2.529) publishes Full Papers, Communications, and Minireviews from the entire spectrum of inorganic, organometallic, bioinorganic, and solid-state chemistry. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies. The following journals have been merged to form the two leading journals, European Journal of Inorganic Chemistry and European Journal of Organic Chemistry: Chemische Berichte Bulletin des Sociétés Chimiques Belges Bulletin de la Société Chimique de France Gazzetta Chimica Italiana Recueil des Travaux Chimiques des Pays-Bas Anales de Química Chimika Chronika Revista Portuguesa de Química ACH—Models in Chemistry Polish Journal of Chemistry The European Journal of Inorganic Chemistry continues to keep you up-to-date with important inorganic chemistry research results.
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