Synthesis and Isolation of the Molecule-like Cluster Au38

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Langmuir 2008, 24, 5976-5976

Additions and Corrections Synthesis and Isolation of the Molecule-like Cluster Au38(PhCH2CH2S)24 Robert L. Donkers, Dongil Lee, and Royce W. Murray* Langmuir 2004, 20, 1945-1952.

Nanoparticles prepared in a similar manner and having the same electrochemical signature have been shown, by high resolution mass spectrometry analysis,1,2 to have the formula Au25(PhCH2CH2S)18. This was further confirmed by single crystal structure determination.3 The native Au25 nanoparticle has a 1charge, and its counterion (from the synthesis) is tetraoctylammonium. We conclude that the nanoparticles prepared in this paper and labeled with the formula cited above, were instead mostly Au25. (1) Tracy, J. B.; Kalyuzhny, G.; Crowe, M. C.; Balasubramanian, R.; Choi, J.-P.; Murray, R. W. J. Am. Chem. Soc. 2007, 129, 6706–6707. (2) Tracy, J. B.; Crowe, M. C.; Parker, J. F.; Hampe, O.; Fields-Zinna, C. A.; Dass, A.; Murray, R. W. J. Am. Chem. Soc. 2007, 129, 16209–16215. (3) Heaven, M. W.; Dass, A.; White, P. S.; Holt, K. M.; Murray, R. W. J. Am. Chem. Soc. 2008, 130, 3754–3755.

LA801163T 10.1021/la801163t Published on Web 05/02/2008