Biomimetic crystallization for long-pursued –COOH-functionalized gold nanocluster with near-infrared phosphorescence
The total structures of Au25a (a), Au25b (b) and Au25c (c). (d) Molecular structures of 2-H2mna, 6-H2mna and p-MBAH. (e) ESI-MS of Au25a dissolved in H2O/MeCN. Inset: the experimental (blue trace) and calculated (red trace) isotopic patterns of the molecular ion peak [Au25(Hmna)15]2+. The Au25 frameworks in Au25a (f), Au25b (g) and Au25c (h). Anatomy of the crystal structures in Au25a (i), Au25b (j) and Au25c (k). Color codes: Purple, Au; yellow, S; blue, N; gray, C. All hydrogen atoms, and some carbon tails of thiolate…
