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Abstract <p>A novel series of similar cationic complexes of the lanthanides containing cymantrenecarboxylate and 1,1'-bis(diphenylphosphine oxide)ferrocene ligands, [Ln(CymCO<sub>2</sub>)<sub>2</sub>(DppfO<sub>2</sub>)<sub>2</sub>]NO<sub>3</sub>·<i>Solv</i> (Cym = (η<sup>5</sup>-C<sub>5</sub>H<sub>4</sub>)Mn(CO)<sub>3</sub>); DppfO<sub>2</sub> = Fe(η<sup>5</sup>-C<sub>5</sub>H<sub>4</sub>P(O)Ph<sub>2</sub>)<sub>2</sub>; <i>Solv</i> are the lattice solvent molecules; Ln = Tb (<b>I</b>), Dy&#xa0;(<b>II</b>), Ho (<b>III</b>), Er (<b>IV</b>), Yb (<b>V</b>)), was prepared and characterized by X-ray analysis. The Ln<sup>3+</sup> ions encapsulated in the unique bulky [Ln(CymCO<sub>2</sub>)<sub>2</sub>(DppfO<sub>2</sub>)<sub>2</sub>]<sup>+</sup> cations are eight-coordinate; both kinds of the shell-forming organometallic ligands are bidentate. Magnetic properties of complexes <b>I</b><i>–</i><b>V</b> were studied in dc and ac modes; the derivatives of Er and Yb reveal the properties of single-molecule magnets.</p>

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Heterotrimetallic 3d-3d '-4f Complexes Based on Cymantrenecarboxylate and Ferrocene Phosphine Oxide Ligands: Synthesis, Structure, and Magnetic Properties

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • P. S. Koroteev,
  • A. B. Ilyukhin,
  • K. A. Babeshkin,
  • A. V. Gavrikov,
  • N. N. Efimov

摘要

Abstract

A novel series of similar cationic complexes of the lanthanides containing cymantrenecarboxylate and 1,1'-bis(diphenylphosphine oxide)ferrocene ligands, [Ln(CymCO2)2(DppfO2)2]NO3·Solv (Cym = (η5-C5H4)Mn(CO)3); DppfO2 = Fe(η5-C5H4P(O)Ph2)2; Solv are the lattice solvent molecules; Ln = Tb (I), Dy (II), Ho (III), Er (IV), Yb (V)), was prepared and characterized by X-ray analysis. The Ln3+ ions encapsulated in the unique bulky [Ln(CymCO2)2(DppfO2)2]+ cations are eight-coordinate; both kinds of the shell-forming organometallic ligands are bidentate. Magnetic properties of complexes I–V were studied in dc and ac modes; the derivatives of Er and Yb reveal the properties of single-molecule magnets.