A porous metal-organic framework (MOF) with unusual 2D→3D polycatenation based on honeycomb layers.

A novel mixed-ligand 3D metal-organic framework (MOF), {Zn(2)(TMTA)(bipy)(0.5)(H(2)O)(2)·NO(3)·2DMF·H(2)O}(n) (1) (H(3)TMTA = 4,4',4''-(2,4,6-trimethylbenzene-1,3,5-triyl)tribenzoic acid, bipy = 4,4'-bipyridine, DMF = dimethylformamide), was constructed based on bipy-pillared honeycomb bilayers and showed the unusual 2D→3D polycatenation of bilayers.