Structure Prediction of Au44(SR)28: A Chiral Superatom Cluster
Journal of the American Chemical Society2013Vol. 135(51), pp. 19060–19063
Citations Over TimeTop 10% of 2013 papers
Abstract
The structure of a thiolate-protected Au44 cluster, [Au44(SR)28], is theoretically predicted via density functional theory calculations. Au44(SR)28 is predicted to contain a "two-shell" face-centered-cubic type of Au kernel and possess chirality. The predicted cluster structure is validated by comparison of optical absorption properties between theory and previous experiments, as well as energy evaluations. Based on the predicted cluster structure, the magic stability of Au44(SR)28 is understood from the superatom electronic configuration and formation of a unique double-helix superatom network inside.
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