A novel cobalt complex [Co(2,5-PDC)2(H2O)2Co(H2O)4]·4H2O (2,5-PDCH2 = 2,5-pyridinedicarboxylic acid) was synthesized and its crystal structure has been determined by X-ray diffraction. The crystallographic data are: triclinic P−1, a = 7.112(2) Å, b = 8.939(3) Å, c = 9.719(3) Å, α = 91.153(5)°, β = 101.136(5)°, γ = 108.001(4)°, V = 574.4(3) Å3, Z = 1. The compound [Co(2,5-PDC)2(H2O)2Co(H2O)4]·4H2O exhibits a novel one-dimensional network constructed from the interconnection of Co(2,5-PDC)2(H2O)2 and Co(H2O)4, in which two kinds of six-coordinated Co(II) atoms have both octahedral coordination environments. Each 2,5-PDC anion connects two different coordinated cobalt ions alternately in an one-dimensional chain. The zigzag 1D alternating chains are linked by extensive hydrogen bonds to form a three-dimensional (3D) supramolecular structure, in which uncoordinated solvate molecules act as space filling particles.
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We thank the financial support by National Scientific Foundation of China (50132010) and the 985 Program of Tsinghua University.
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CCDC-264249 contains the supplementary crystallographic data for this paper. Copies of this information may be obtained free of charge from the Director, CCDC, 12 Union Road, Cambridge, CB2 1EZ, UK (fax: t44–1223–336033; e-mail: deposit@ccdc.cam.ac.uk or http://www.ccdc.cam.ac.uk) or also available from the author Xiaoqing Wang.
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Xie, C., Zhang, B., Wang, X. et al. The synthesis and structure of a novel alternating 1-D cobalt coordination polymer [Co(2,5-PDC)2(H2O)2Co(H2O)4]·4H2O. J Chem Crystallogr 37, 25–29 (2007). https://doi.org/10.1007/s10870-005-9036-6
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DOI: https://doi.org/10.1007/s10870-005-9036-6