Structures and magnetism of two novel heptanuclear lanthanide-centered trigonal prismatic clusters: [LnCu63-OH)3(HL)2(L)4](ClO4)2·25H2O (Ln = La, Tb; H2L = iminodiacetic acid)

Qin De Liu, Song Gao*, Jun Ran Li, Qing Zhong Zhou, Kai Bei Yu, Bao Qing Ma, Shi Wei Zhang, Xixiang Zhang, Tian Zhu Jin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

86 Scopus citations

Abstract

The new heteronuclear iminodiacetic acid (H2L) complexes [LnCu63-OH)3(HL)2(L)4](ClO4)2·25H2O with Ln = La (1) and Tb (2) have been prepared in aqueous solution and characterized by single-crystal X-ray diffraction to be isomorphous (crystallographic data for 1 and 2: hexagonal, P63/m; a = b = 12.6425(14) Å, c = 24.541(5) Å, Z = 2 (1); a = b = 12.5802(9) Å, c = 24.285(4) Å, Z = 2 (2)). Ln3+ was found to be located in the center of the trigonal prismatic cage formed by six Cu2+ ions, with a tricapped trigonal prismatic coordination environment of nine O atoms. The magnetic properties of complexes 1 and 2 have been studied. The results indicate the presence of ferromagnetic couplings between Tb3+ and Cu2+ in compound 2.

Original languageEnglish (US)
Pages (from-to)2488-2492
Number of pages5
JournalInorganic Chemistry
Volume39
Issue number12
DOIs
StatePublished - Jun 12 2000

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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