Beauty, symmetry, and magnetocaloric effect-four-shell keplerates with 104 lanthanide atoms

Jun Bo Peng, Xiang Jian Kong, Qian Chong Zhang, Martin Orendáč, Jan Prokleška, Yan Ping Ren, La Sheng Long, Zhiping Zheng, Lan Sun Zheng

Research output: Contribution to journalArticle

156 Scopus citations

Abstract

The hydrolysis of Ln(ClO4)3 in the presence of acetate leads to the assembly of the three largest known lanthanide-exclusive cluster complexes, [Nd104(ClO4)6(CH3COO)603-OH)1684-O)30(H2O)112]·(ClO4)18·(CH3CH2OH)8·xH2O (1, x ∼ 158) and [Ln104(ClO4)6(CH3COO)563-OH)1684-O)30(H2O)112]·(ClO4)22·(CH3CH2OH)2·xH2O (2, Ln = Nd; 3, Ln = Gd; x ≈ 140). The structure of the common 104-lanthanide core, abbreviated as Ln8@Ln48@Ln24@Ln24, features a four-shell arrangement of the metal atoms contained in an innermost cube (a Platonic solid) and, moving outward, three Archimedean solids: a truncated cuboctahedron, a truncated octahedron, and a rhombicuboctahedron. The magnetic entropy change of δSm = 46.9 J kg-1 K-1 at 2 K for δH = 7 T in the case of the Gd104 cluster is the largest among previously known lanthanide-exclusive cluster compounds.

Original languageEnglish (US)
Pages (from-to)17938-17941
Number of pages4
JournalJournal of the American Chemical Society
Volume136
Issue number52
DOIs
StatePublished - Dec 31 2014

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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    Peng, J. B., Kong, X. J., Zhang, Q. C., Orendáč, M., Prokleška, J., Ren, Y. P., Long, L. S., Zheng, Z., & Zheng, L. S. (2014). Beauty, symmetry, and magnetocaloric effect-four-shell keplerates with 104 lanthanide atoms. Journal of the American Chemical Society, 136(52), 17938-17941. https://doi.org/10.1021/ja5107749