Gold cluster molecules

S. J. Green, J. J. Stokes, G. D. Wignall, G. L. GUsh, M. D. Porter, N. D. Evans, and R. W. Murray, Alkanethiolate gold cluster molecules with core diameters from 1.5 to 5.2 nm Core and monolayer properties as a function of core size, Langmuir 14,17—30 (1998). 

Hostetler MJ, Templeton AC, Murray RW. Dynamics of place-exchange reactions on monolayer-protected gold cluster molecules. Langmuir 1999 15 3782-3789. 

The bonding in gold cluster molecules has been interpreted using free electron models based on Stone s tensor surface harmonic theory [48, 49]. High similarity has... 

Murray, Alkanethiolate gold cluster molecules with cotc diameters from 1.5 to 5.2 nm core and monolayer properties as a fimction of cote size. Langmuir 14, 17-30 (1998)... 

Templeton, A., Hostetler, M., Kraft, C. and Murray, R., Reactivity of monolayer-protected gold cluster molecules steric effects, J. Am. Chem. Soc., 120, 1906-1911 (1998). 

Rousseau, R. and Marx, D. (2000) The interaction of gold clusters with methanol molecules Ab initio molecular dynamics ofAUn CH3OH and AunCH30H./owmn of Chemical Physics, 112, 761-769. 

Rousseau, R., Dietrich, G., Kruckeberg, S., Lutzenkirchen, K., Marx, D., Schweikhard, L. and Walther, C. (1998) Probing cluster structures with sensor molecules methanol adsorbed onto gold clusters. Chemical Physics Letters, 295, 41-46. 

Figure 23. Adsorption of oxygen molecule over gold clusters with different sizes [74].

The reactions of the gold anion Au- and of the di- and triatomic gold cluster monoanions Au2- and Au3- with CO were studied in a radio-frequency octopole ion trap experiment at cryogenic temperatures. Au- shows no affinity for CO, but the two cluster anions absorb up to two CO molecules. Particular stability has been ascribed to [Au3(CO)2]-, for which the binding energy has been estimated from thermolysis rate coefficients.292... 

Synthesis of clusters inside the cavities of biologically relevant molecules as well as biomolecules in this method, gold ions are sequestered into the cavities of biomolecules and are subsequently reduced into gold clusters. 

Reactivity of metal clusters can be studied using spectroscopic techniques. By means of single molecule luminescence spectroscopy, we can observe individual clusters. Photoreactivity of gold clusters synthesized using a photochemical method... 

This behavior differs completely from the discrete one-electron absorptions of low-nuclearity metal cluster molecules [17]. Instead, it resembles the 5d - 6s,6p interband transition of colloidal gold. This demonstrates clearly that the AU55 cluster has electronic energy levels which are closely spaced in a developing band structure, quite similar to colloidal gold. On the other hand, these electrons do not seem to show a collective behavior which would give rise to the plasma resonance. 

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