Figure 3
(Left) A perspective view of (I) along the a axis, showing the twofold interpenetrating frameworks. (Right) A diagram of the 6-connected pcu network, in which the Zn4(OH)2 units are considered as 6-connected nodes and the bdc2− ligands act as linkers. The H atoms, chelating pdon ligands and water molecules have been omitted for clarity. |