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Abstract <p>The ionic coordination complexes [(GaCl<sub>2</sub>(18-crown-6))<sup>+</sup>(GaCl<sub>4</sub>)<sup>–</sup>] (<b>I</b>) and [(GaCl<sub>2</sub>(diglyme))<sup>+</sup>(GaCl<sub>4</sub>)<sup>–</sup>] <b>(II)</b> were synthesized and characterized by single-crystal X-ray diffraction and powder X-ray diffraction. Compounds <b>I</b> and <b>II</b> were obtained via the reaction of GaCl<sub>3</sub> with 18-crown-6 ether or diglyme, respectively, in diethyl ether. According to single-crystal X-ray diffraction data, the reaction of GaCl<sub>3</sub> with macrocyclic ethers leads to the formation of ionic coordination compounds, in which the anionic component is a tetrahedral [GaCl<sub>4</sub>]<sup>–</sup> fragment, while the cationic part is a [GaCl<sub>2</sub>(L)]<sup>+</sup> complex (L is 18-crown-6 or diglyme). In both structures, the polyether ligands act as polydentate donors, coordinating by the gallium center via five oxygen atoms of 18-crown-6 in <b>I</b> and three oxygen atoms of diglyme in <b>II</b>. The phase purity of both compounds was confirmed by powder X-ray diffraction.</p>

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Synthesis and Crystal Structures of Anhydrous Gallium(III) Ionic Complexes with Polyether Ligands

  • 期刊论文

  • 发表日期：

    2025年12月12日

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  • N. S. Mayorov,
  • P. A. Egorov,
  • A. A. Mikhaylov,
  • A. G. Medvedev,
  • E. A. Mel’nik,
  • P. V. Prikhodchenko

摘要

Abstract

The ionic coordination complexes [(GaCl2(18-crown-6))+(GaCl4)–] (I) and [(GaCl2(diglyme))+(GaCl4)–] (II) were synthesized and characterized by single-crystal X-ray diffraction and powder X-ray diffraction. Compounds I and II were obtained via the reaction of GaCl3 with 18-crown-6 ether or diglyme, respectively, in diethyl ether. According to single-crystal X-ray diffraction data, the reaction of GaCl3 with macrocyclic ethers leads to the formation of ionic coordination compounds, in which the anionic component is a tetrahedral [GaCl4]– fragment, while the cationic part is a [GaCl2(L)]+ complex (L is 18-crown-6 or diglyme). In both structures, the polyether ligands act as polydentate donors, coordinating by the gallium center via five oxygen atoms of 18-crown-6 in I and three oxygen atoms of diglyme in II. The phase purity of both compounds was confirmed by powder X-ray diffraction.