Influence of water content on the self-assembly of metal-organic frameworks based on pyridine-3,5-dicarboxylate
Journal
Inorganic Chemistry
Journal Volume
45
Journal Issue
6
Pages
2430-2437
Date Issued
2006
Author(s)
Lu, Y. L.
Wu, J. Y.
Chan, M. C.
Huang, S. M.
Lin, C. S.
Liu, Y. H.
Wen, Y. S.
Ueng, C. H.
Chin, T. M.
Hung, C. H.
Lu, K. L.
Abstract
A 0D discrete molecule [Co(3,5-pdc)(H2O)5].2H2O (1) was obtained in quantitative yield from the reaction of CoCl2.6H2O and pyridine-3,5-dicarboxylate (3,5-pdc) in pure water solvent at ambient temperature. While a 1D zigzag chain species, [{Co(3,5-pdc)(H2O)4}.H2O]n (2), was produced in a water-rich environment, a 2D layer compound, [Co(3,5-pdc)(H2O)2]n (3), with a 6(3) topology was generated under a water-reduced condition and a 2D sheet structure, [{Cu(3,5-pdc)(py)2}.H2O.EtOH]n (4), was formed under a water-poor condition. Compounds 1, 2, and 4 were characterized by single-crystal X-ray diffraction analysis. The 1D zigzag chain 2 shows a recoverable collapsing property. Compound 4 adopts a 2D sheet structure with a 4.8(2) topology, observed for the first time for the 3,5-pdc-related metal-organic frameworks. Water content was found to be an important factor in determining the topologies of the products in the self-assembly of divalent metal ions (Co2+, Cu2+) and pyridine-3,5-dicarboxylate under mild conditions.
SDGs
Type
journal article