Assembly between various molecular-building-blocks for network diversity of zinc-1,3,5-benzenetricarboxylate frameworks

The integration of different molecular-building-blocks (MBBs) leads to four fascinating porous Zn-1,3,5-benzenetricarboxylate framework materials with unusual structural topologies. Four identical MBBs are observed in four structures with diverse topological nets. The obtained compound 1 only contains individual MBBs, while compounds 2-4 have the combination of two kinds of MBBs. Remarkably, the structure of 1 with trimeric [Zn₃(OH)(CO ₂)₅] MBBs exhibit interesting nanotubes. In particular, the choice of solvent in each synthesis is important for the network diversity of the Zn-1,3,5-benzenetricarboxylate frameworks reported here.