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(A) Top view of one of the two open facets of Au25(PET)18 clusters where three external Au atoms are exposed; the other facet is on the back side. (B) Side view of the two facets which are at top and bottom. (C) Top view and (D) side view of the co-adsorption of PA and IB on the surface of the Au25(PET)18 clusters. Color code: Au, yellow; S, blue; C, gray; H, white; I, green. Reproduced with permission from [49]. Elsevier, 2013.
