Hydrothermal synthesis, structure and properties of two lanthanide benzenedicarboxylates, [La2(isophth)2(Hisophth)2(H2O) · H2O]n and [Dy4(isophth)4(Ac)4(H2O)8 · 2H2O]n, possessing infinite Ln-O-Ln linkages

De Xin Hu, Pang kuan Chen, Feng Luo, Yun Xia Che, Ji Min Zheng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Two lanthanide benzenedicarboxylates, [La2(isophth)2(Hisophth)2(H2O) · H2O]n 1 and [Dy4(isophth)4(Ac)4(H2O)8 · 2H2O]n 2 (H2isophth = isophthalic acid, Ac = acetate) have been obtained by hydrothermal synthetic method and characterized by elementary analysis, IR, TG, and especially the X-rays single-crystal diffraction. The complexes 1 and 2 crystallize in the monoclinic system with P21/c space group. The X-ray single-crystal structure analysis reveals that center metal ions Ln(III) are nine-coordinated and linked by μ2-Ocoo- groups to form the [Ln2-(μ2-Ocoo-)2-Ln1]n inorganic-organic chains and finally to furnish the supramolecular framework structures. The thermogravimetric analyses were carried out to examine the thermal stability of these two complexes. Magnetic studies on the polycrystalline sample shows the existence of strong antiferromagnetic couplings between the adjacent Dy3+ ions in compound 2.

Original languageEnglish
Pages (from-to)179-184
Number of pages6
JournalJournal of Molecular Structure
Volume837
Issue number1-3
DOIs
Publication statusPublished - 30 Jun 2007
Externally publishedYes

Keywords

  • Antiferromagnetic
  • Hydrothermal reaction
  • Isophthalate
  • Lanthanide
  • Ligand

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