Fig. 4: The packing of SD/Ag88a and SD/Ag88b.
From: A hierarchically assembled 88-nuclei silver-thiacalix[4]arene nanocluster

Top and side views of the 1D array of SD/Ag88a (a, c) and SD/Ag88b (b, d). Different Ag88 clusters are individually colored. The central CrO42− was removed for clarity.