Direct water-based synthesis and characterization of new Zr/Hf-MOFs with dodecanuclear clusters as IBUs†
Abstract
Two new metal–organic framework compounds of composition [M12(μ3-O)8(μ3-OH)8(μ-OH)6(OH)6(H2O)6(APDC)6], with M = Zr and Hf, denoted as M-CAU-39, containing the azopyridinedicarboxylate ion (APDC2−) as a new linker, were obtained by a water-based synthesis. The crystal structure was determined from powder X-ray diffraction data. The inorganic building unit (IBU) is the dodecanuclear cluster {M12O8(OH)14} and its connection results in a porous two-dimensional network.