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Journal of Chemical Crystallography

, Volume 37, Issue 1, pp 25–29 | Cite as

The synthesis and structure of a novel alternating 1-D cobalt coordination polymer [Co(2,5-PDC)2(H2O)2Co(H2O)4]·4H2O

  • Chengzhi Xie
  • Baofeng Zhang
  • Xiaoqing Wang
  • Ruji Wang
  • Guangqiu Shen
  • Dezhong Shen
Article

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.

KEY WORDS

Crystal structure cobalt complex 1D alternating chain pyridine-2,5-dicarboxylic acid 

Notes

Acknowledgements

We thank the financial support by National Scientific Foundation of China (50132010) and the 985 Program of Tsinghua University.

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Copyright information

© Springer Science + Business Media, Inc 2006

Authors and Affiliations

  • Chengzhi Xie
    • 1
  • Baofeng Zhang
    • 1
  • Xiaoqing Wang
    • 1
  • Ruji Wang
    • 1
  • Guangqiu Shen
    • 1
  • Dezhong Shen
    • 1
  1. 1.Department of ChemistryTsinghua UniversityBeijingP. R. China

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