A New Multidentate Hexacarboxylic Acid for the Construction of Porous Metal-Organic Frameworks of Diverse Structures and Porosities

Three porous metal organic frameworks have been constructed from the new developed C3-symmetric hexacarboxylic acid 3,3',3 '',5,5',5 ''-benzene-1,3,5-triyl-hexabenzoic acid (H(6)BHB) of different NaCl- and Al(2)O(3)-type topologies. The activated metal-organic frameworks (MOFs) exhibit permanent porosities as revealed in their gas and vapor adsorption isotherms, highlighting the promise of this new ligand for the construction of porous MOFs for gas storage and separation.