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<p>Herein, we report the preparation and characterization of four new ionic complexes with the ligand 2-aminomethylbenzimidazole (L), namely [Ni(L)<sub>3</sub>](ClO<sub>3</sub>)<sub>2</sub>∙H<sub>2</sub>O∙0.7MeOH (<b>1</b>), [Ni(L)<sub>3</sub>](ClO<sub>4</sub>)<sub>2</sub>∙1.5H<sub>2</sub>O (<b>2</b>), [Ni(L)<sub>3</sub>](NO<sub>3</sub>)<sub>2</sub> (<b>3</b>), [Ni(L)<sub>3</sub>](SO<sub>3</sub>NH<sub>2</sub>)<sub>2</sub>∙H<sub>2</sub>O (<b>4</b>). The structures were refined with Hirshfeld Atom Refinement (HAR), and various Hirshfeld surfaces were analysed. In all cases, three molecules of L are coordinated to the central atom in a bidentate-chelating manner, and every nickel atom adopts a pseudo-octahedral coordination geometry. The most significant contacts typically involve hydrogen bonds between the hydrogen atom of the imidazole ring and the inorganic anion or water molecules.</p>

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Nickel(II) complexes with 2-aminomethylbenzimidazole: crystal structures and Hirshfeld surface analysis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月23日

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  • Rudolf Varga,
  • Matúš Lištiak,
  • Vladimír Kuchtanin,
  • Jana Braniša,
  • Miroslava Litecká,
  • Jozef Švorec,
  • Ján Moncoľ

摘要

Herein, we report the preparation and characterization of four new ionic complexes with the ligand 2-aminomethylbenzimidazole (L), namely [Ni(L)3](ClO3)2∙H2O∙0.7MeOH (1), [Ni(L)3](ClO4)2∙1.5H2O (2), [Ni(L)3](NO3)2 (3), [Ni(L)3](SO3NH2)2∙H2O (4). The structures were refined with Hirshfeld Atom Refinement (HAR), and various Hirshfeld surfaces were analysed. In all cases, three molecules of L are coordinated to the central atom in a bidentate-chelating manner, and every nickel atom adopts a pseudo-octahedral coordination geometry. The most significant contacts typically involve hydrogen bonds between the hydrogen atom of the imidazole ring and the inorganic anion or water molecules.