Fig. 1. Total structure of Au28(SR)20 and Au36(SR)24 nanoclusters. (a) total structure of Au28(SR)20 nanoclusters; (b) total structure of Au36(SR)24 nanoclusters; (c) the Au14 metal core of Au28(SR)20 nanoclusters; (d) the Au20 metal core of Au36(SR)24 nanoclusters. Color label: yellow, Au; red, S; pink, Au at the vertex side of the metal core. Note that the C and H atoms are omitted for clarity.
