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Two novel 2D lanthanide-organic frameworks based on different carboxylate-containing mixed ligands

  • CAS - Fujian Institute of Research on the Structure of Matter
  • University of Chinese Academy of Sciences

Research output: Contribution to journalArticlepeer-review

Abstract

Two novel lanthanide-organic polymers [Er2(pdc) 2(o-bdc)(H2O)2(1, H2O (1, H 2pdc = 2,6-pyridinedicarboxylic acid, O-H2bdc = 1,2-benzenedicarboxylic acid) and Er(Himdc)(m-bdc)0.5(H2O) (2, H 3imdc = 4,5-imidazoledicarboxylic acid, m-H2bdc = 1,3-benzenedicarboxylic acid) have been synthesized and characterized by elemental analysis, IR, thermogravimetric analysis and X-ray single-crystal diffraction studies. 1 crystallizes in monoclinic, space group P21/c, while 2 in the orthorhombic space group Pbcn. Both compounds 1 and 2 display two-dimensional network structures. For 1, the tetranuclear parallelogram {Er4} cluster as a building block is further assembled into a wonderful 2D grid, and the layers are interconnected via hydrogen bonds and nπ-π stacking interactions to yield a 3D supramolecular architecture; for 2, its configuration is a rare double-decker structure. These two complexes represent good examples for using mix-carboxylate-containing ligands to construct diverse 2D lanthanide coordination polymers.

Original languageEnglish
Pages (from-to)17-22
Number of pages6
JournalJiegou Huaxue
Volume29
Issue number1
Publication statusPublished - 2010
Externally publishedYes

Keywords

  • Carboxylate-containing
  • Hydrothermal synthesis
  • Lanthanide
  • Ligands

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