Construction of two 2D 3d-4f coordination complexes based on the linkages of left-and right-handed helical chains

  • Zhu L
  • Zhao Y
  • Yu S
 et al. 
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Two transition-lanthanide metal-organic coordination polymers, {[CoLn2(Himdc)2(SO4)2(H2O)4]•H2O}n[Ln = Yb (1), Ho (2)] (H3imdc = imidazole-4, 5-dicarboxylic acid), have been synthesized by the hydrothermal reactions of lanthanide oxides, CoSO4•7H2O, H3imdc and H2O. Single-crystal X-ray diffraction analysis reveals that the isostructural complexes 1 and 2 possess unusual 2D wave-like heterometallic layers with 1D (Ln2O2CoO2)nand [Ln2(SO4)2]ninorganic chains constructed by the assembly of 1D left-/right-handed helical L-Ln2Co-L (L = Himdc) chains and SO42-anions, while a 3D framework is formed via hydrogen-bonding interactions interlayer. © 2010 Published by Elsevier B.V. All rights reserved.

Author-supplied keywords

  • 3d-4f
  • 5-dicarboxylate
  • Helical chains
  • Imidazole-4
  • Metal-organic framework

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