Structural diversity through tuning pillar: Porous robust [Zn3(FDA)3·bpp·H2O]·2H2O and 3-/3-D dual interpenetrating [Zn·(FDA)·bipy]·2H2O

The furan-2,5-dicarboxyl acid (FDA) is firstly utilized to the construction of MOFs, and the pillars are enlisted in the structural formation by the method of ligand-to-ligand. The pillar properties play an important role in final structure. The flexible bpp (1,3-bi(4-pyridyl)propane) results in the robust porous [Zn3·(FDA)3·bpp·H2O]·2H2O (1) with high thermal stability (~ 270 °C) and medium CO2 uptake (1.65 mmol/g, 273 K), and the rigid bipy (4,4′-bipyridine) in 3-/3-D interpenetrated [Zn·(FDA)·bipy]·2H2O (2).