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. 2016 Nov 10;7:13447. doi: 10.1038/ncomms13447

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Copyright © 2016, The Author(s)

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Calculated energies for the substitution reaction (ΔE_s) of Au in Ag₂₅(DMBT)₁₈ (a), Ag in Au₂₅(PET)₁₈ (b) and the overall reaction energies (c), in meV, as a function of their positions in the product clusters, Ag₂₄Au₁(DMBT)₁₈ and Au₂₄Ag₁(PET)₁₈. DMBT is 2,4-dimethylbenzenethiol and PET is 2-phenylethanethiol. The overall structure of M₂₅(SR)₁₈ (M=Ag/Au) and their distinct metal atom positions (C, I and S) are shown in (d). For the labels on the picture, refer to text.