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Abstract <p>A series of cobalt(II) acetate and trifluoroacetate compounds with 3-arylidene-1-pyrroline derivatives (X-L; X = Cl, OH) as N-donor ligands were synthesized. The variation of reaction and crystallization conditions resulted in the isolation of coordination compounds with various compositions and structures: tetranuclear complexes based on the {Co<sub>4</sub>(OH)<sub>4</sub>}<sup>4–</sup> cubane moiety, [Co<sub>4</sub>(OH)<sub>4</sub>(Cl-L)<sub>4</sub>(OAc)<sub>4</sub>] (<b>I</b>), 1D polymer [Co(H<sub>2</sub>O)(Cl-L)<sub>2</sub>(CF<sub>3</sub>COO)<sub>1.167</sub>(OAc)<sub>0.833</sub>]<sub><i>n</i></sub> (<b>II</b>), and molecular complex [Co(OH-L)<sub>2</sub>(OAc)<sub>2</sub>] (<b>III</b>). The products were characterized by X-ray diffraction, IR spectroscopy, and CHN analysis. The structure and crystal packing in the obtained complexes were analyzed in detail, the main structuring non-covalent interactions in the crystals were identified.</p>

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Synthesis and Structural Features of Co(II) Compounds with 3-Arylidene-1-pyrrolidine Derivatives and Monocarboxylic Acid Anions

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • Yu. K. Voronina,
  • O. V. Zvereva,
  • M. A. Shmelev,
  • E. N. Zorina-Tikhonova,
  • A. V. Rogachev,
  • A. A. Sidorov,
  • I. L. Eremenko

摘要

Abstract

A series of cobalt(II) acetate and trifluoroacetate compounds with 3-arylidene-1-pyrroline derivatives (X-L; X = Cl, OH) as N-donor ligands were synthesized. The variation of reaction and crystallization conditions resulted in the isolation of coordination compounds with various compositions and structures: tetranuclear complexes based on the {Co4(OH)4}4– cubane moiety, [Co4(OH)4(Cl-L)4(OAc)4] (I), 1D polymer [Co(H2O)(Cl-L)2(CF3COO)1.167(OAc)0.833]n (II), and molecular complex [Co(OH-L)2(OAc)2] (III). The products were characterized by X-ray diffraction, IR spectroscopy, and CHN analysis. The structure and crystal packing in the obtained complexes were analyzed in detail, the main structuring non-covalent interactions in the crystals were identified.