New metal organic framework structures based on 2,5-pyridinedicarboxylate ligands and Zn2+ ions

Structural characteristics and adsorption properties of new heteroaromatic framework structures based on Zn2+ ions and 2,5-pyridinedicarboxylate ligands are investigated. A comparative study of the aromatic framework structure MOF-5 based on Zn4O clusters and 1,4-benzenedicarboxylate ligands is also performed in order to reveal the effect of the nature of the organic fragment.