Syntheses and structures of nine-coordinate K3[DyIII(nta)2(H2O)]·5H2O and eight-coordinate (NH4)3[DyIII(nta)2] complexes

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• 作者：J. Wang ; X. Zh. Liu ; Zh. H. Zhang ; X. D. Zhang ; G. R. Gao ; Y. M. Kong and Y. Li
• 关键词：synthesis ; structure ; DyIII ; nitrilotriacetic acids (nta)
• 刊名：Journal of Structural Chemistry
• 出版年：2006
• 出版时间：September, 2006
• 年：2006
• 卷：47
• 期：5
• 页码：906-912
• 全文大小：168 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Inorganic Chemistry
  Physical Chemistry
  Atoms, Molecules, Clusters and Plasmas
  Atomic and Molecular Structure and Spectra
  Solid State Physics and Spectroscopy
  Russian Library of Science
  
• 出版者：Springer New York
• ISSN：1573-8779

文摘

K₃[DyIII(nta)₂(H₂O)]·5H₂O and (NH₄)₃[DyIII(nta)₂] have been synthesized in aqueous solution and characterized by IR, elemental analysis and single-crystal X-ray diffraction techniques. In K₃[DyIII(nta)₂(H₂O)]·5H₂O the DyIII ion is nine coordinated yielding a tricapped trigonal prismatic conformation, and its crystal belongs to monoclinic system and C2/c space group. The crystal data are as follows: a = 15.373(5) ?, b = 12.896(4) ?, c = 26.202(9) ?; β = 96.122(5)°, V = 5165(3) ?3, Z = 8, D _c = 1.965 g·cm?3, μ = 3.458 mm?1, F(000) = 3016, R ₁ = 0.0452 and wR ₂ = 0.1025 for 4550 observed reflections with I ≥ 2σ(I). In (NH₄)₃[DyIII(nta)₂] the DyIII ion is eight coordinated yielding a usual dicapped trigonal anti-prismatic conformation, and its crystal belongs to monoclinic system and C2/c space group. The crystal data are as follows: a = 13.736(3) ?, b = 7.9389(16) ?, c = 18.781(4) ?; β = 104.099(3)°, V = 1986.3(7) ?3, Z = 2, D _c = 1.983 g·cm?3, μ = 3.834 mm?1, F(000) = 1172, R ₁ = 0.0208 and wR ₂ = 0.0500 for 2022 observed reflections with I ≥ 2σ(I). The results indicate that the difference in counter ion also influences coordination numbers and structures of rare earth metal complexes with aminopolycarboxylic acid ligands.