Abstract
Four new 3d–4f heterometallic coordination polymers [Cu3Eu2(2,5-pydc)6(H2O)12]·4(H2O) (1), [Zn2Eu2(2,5-pydc)5(H2O)2]·3(H2O) (2), and [Co3Ln2(2,6-pydc)6(H2O)6]·4(H2O) (Ln = Eu, 3; Dy, 4) (H2pydc = pyridinedicarboxylic acid) have been synthesized and characterized. All of these compounds have extended 3D coordination frameworks containing supramolecular 1D channels, in which lattice water molecules are located. Hydrogen bonds stabilize the 3D frameworks. Additionally, a study of their fluorescence properties has indicated that compounds 1 and 2 show the characteristic transitions of Eu3+. Weak antiferromagnetic interactions are observed in compound 3.
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Acknowledgments
This work was supported by the Natural Science Foundation of China (Grants nos. 20601007 and 20773034), the Natural Science Foundation of Hebei Education Department (Grant no. ZH2006002), the Natural Science Foundation of Hebei Province (Grant no. B2008000143), and the Doctoral Foundation of Hebei Normal University (No. 103261).
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He, R., Liang, Q., Song, HH. et al. A series of three-dimensional 3d–4f heterometallic coordination frameworks based on pyridinedicarboxylic acid. Struct Chem 21, 923–929 (2010). https://doi.org/10.1007/s11224-010-9627-5
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DOI: https://doi.org/10.1007/s11224-010-9627-5