Fig. 3: Crystal structure of SD/Ag72a.

a [(PW9O34)2@Ag72] cluster with the ligands and (b) highlighting the sandwiched S2−-centered silver plane by two PW9O349−. Color labels: same as Fig. 1. Only N atoms of coordinated bipy are shown for clarity. c The connections between [(PW9O34)2@Ag72] clusters. PW9O349− is shown in space-filling mode. d The simplified 2D 44-sql network with [(PW9O34)2@Ag72] as node (yellow balls) and bipy as linker (green sticks).