Porous Zirconium Metal–Organic Framework Constructed from 2D → 3D Interpenetration Based on a 3,6-Connected kgd Net

A new
porous zirconium metal–organic framework (Zr MOF), Zr6(μ3-O)4(μ3-OH)4(OH)6(H2O)6(BTB)2·6DMF·H2O (1; H3BTB = 5′-(4-carboxyphenyl)­[1,1′:3′,1″-terphenyl]-4,4″-dicarboxylic
acid), based on Zr6 clusters and tricarboxylate ligands
has been constructed and characterized. The Zr6 clusters
were linked by BTB ligands to generate a 2D network of kgd topology.
The interpenetrations among the 2D networks gave rise to a 3D porous
framework, which represents the first Zr MOF constructed from 2D →
3D interpenetration. The gas uptake and catalytic properties for 1 have also been studied.