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Abstract
Two phthalate structures and a copper coordination polymer, (phth)2(H2O)2 (1), (phth)2(H2O)3 (2), and Cu(phth)2(H2O)2 (3) [phth = phthalate], have been synthesized hydrothermally. The complexes were studied by single crystal X-ray analysis, elemental analysis, IR spectra and TG-DTG. Single crystal X-ray analysis reveals that 1 belongs to the orthorhombic system, space group Pca2(1), 2 is the monoclinic system, space group C2/c and 3 has four-coordinate Cu(II). The copper complex forms a one-dimensional zigzag chain via π–π stacking interaction of phthalates. Adjacent zigzag chains may be paired by supramolecular recognition and attraction through both π–π stacking and hydrogen bonding interactions into molecular zippers, further interlinked into a three-dimensional supramolecular network by these noncovalent interactions.
Acknowledgements
We thank the Natural Science Foundation of Henan Province and the Key Discipline Foundation of Zhoukou Normal University for financial support of this research.