Figure 1.
View of the chemical structures of the ligands and crystal structures of the isostructural MFMs series. (a) The three hexacarboxylate ligands for the construction of MFM-112, MFM-115, and MFM-132, respectively. (b) In the (3,24)-connected network, the linker with C3-symmetry is connected to three cuboctahedra (cage A). The MFM-132 case is shown as an example. (c) The different cage structures (cage B, C, and D) in the above three frameworks. The colors for the spheres that fit into the void of different types of cages are magenta for cage A, orange for cage B, yellow for cage C, and green for cage D.