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<p>Two mononuclear coordination compounds of manganese(<span>ii</span>) and iron(<span>iii</span>) with <i>N</i>′-(5-chloro-2-hydroxybenzylidene)-4-nitrobenzohydrazide (H<sub>2</sub>L), [Mn(HL)(H<sub>2</sub>O)-(DMF)Cl] (<b>1</b>) and [Fe(L)(H<sub>2</sub>O)(DMF)Cl] • DMF (<b>2</b>), were synthesized and characterized. According to the single-crystal X-ray diffraction data, both compounds have a similar ligand composition, although in the manganese(<span>ii</span>) complex, the acylhydrazone is coordinated in the single deprotonated form (HL<sup>−</sup>), whereas this ligand in the iron(<span>iii</span>) complex is fully deprotonated (L<sup>2−</sup>). The metal atoms have a distorted octahedral coordination environment, but with different orientations of the ligands relative to the acylhydrazone plane. The crystal structures of both complexes are stabilized by systems of hydrogen bonds and <i>π</i>—<i>π</i>-stacking interactions between the aromatic moieties.</p>

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Complexes of isoelectronic ions of 3d metals (MnII, FeIII) with N′-(5-chloro-2-hydroxybenzylidene)-4-nitrobenzohydrazide

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • A. K. Matiukhina,
  • E. N. Zorina-Tikhonova,
  • D. O. Blinou,
  • I. V. Skabitsky,
  • N. V. Gogoleva,
  • M. A. Kiskin,
  • I. L. Eremenko

摘要

Two mononuclear coordination compounds of manganese(ii) and iron(iii) with N′-(5-chloro-2-hydroxybenzylidene)-4-nitrobenzohydrazide (H2L), [Mn(HL)(H2O)-(DMF)Cl] (1) and [Fe(L)(H2O)(DMF)Cl] • DMF (2), were synthesized and characterized. According to the single-crystal X-ray diffraction data, both compounds have a similar ligand composition, although in the manganese(ii) complex, the acylhydrazone is coordinated in the single deprotonated form (HL−), whereas this ligand in the iron(iii) complex is fully deprotonated (L2−). The metal atoms have a distorted octahedral coordination environment, but with different orientations of the ligands relative to the acylhydrazone plane. The crystal structures of both complexes are stabilized by systems of hydrogen bonds and π—π-stacking interactions between the aromatic moieties.