Fig. 8. (a) Packing structure, (b) H-bonds, and (c) mechanical response of protonated [Ag44(p-MBA)30]4− in its triclinic supercrystals; the top panel in (b) illustrates H-bonds in a typical double-bundle of p-MBA ligands, while the bottom panel exhibits H-bonds within (horizontal direction) and between (vertical direction) the crystalline layers; V and V0 in (c) are the volume and initial volume of supercrystals, respectively; (a)–(c) are reproduced with permission from ref. 190. Copyright 2014, Springer Nature. (d) Formation diagram of the octahedral and concave-octahedral supercrystals by deprotonated [Ag44(p-MBA)30]4− in a range of Cs+ concentrations and dimethyl sulfoxide (DMSO) fractions in the crystallization solution; reproduced with permission from ref. 191. Copyright 2015, Wiley-VCH. (e) Schematic illustration of intra- (blue dashed lines) and inter-cluster (yellow dashed lines) CH–π interactions between two [Au52Cu72(S-Ph-p-CH3)55]+ NCs approaching in an edge-to-edge fashion in their supercrystals, where a triangular mosaic pattern of –S-Ph-p-CH3 ligands can be identified (colour code: pink/golden, Au/Cu; yellow, S; grey/magenta/orange, C; light grey, H); reproduced with permission from ref. 17. Copyright 2020, the Authors, published by Springer Nature.
