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Synthesis, Structure, and Photoluminescent Properties of Zn2+, Mn2+, Cd2+, Eu3+, and Tb3+ Complexes with 4-Allyl-2,3,5,6-Tetrafluorobenzoic Acid Anions and 1,10-Phenanthroline

  • 期刊论文

  • 发表日期：

    2024年2月1日

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  • M. A. Shmelev,
  • A. S. Chistyakov,
  • G. A. Razgonyaeva,
  • J. K. Voronina,
  • E. A. Varaksina,
  • I. V. Taydakov,
  • A. A. Sidorov,
  • I. L. Eremenko

摘要

Abstract

We report a synthesis of a series of molecular compounds and coordination polymers of Zn2+, Mn2+ Cd2+, Eu3+, and Tb3+ with 4-allyl-2,3,5,6-tetrafluorobenzoic acid (4-Afb) anions and 1,10-phenanthroline with compositions [Zn(H2O)(phen)(4-Afb)2] (1), [Mn(H2O)(phen)(4-Afb)2]n·nH2O (2), [Cd(H2O)(phen)(4-Afb)2]n (3), [Cd(phen)(4-Afb)2]n (4), [Ln2(phen)2(4-Afb)6] (Ln = Eu 5Eu; Tb 5Tb). It is shown that the obtained cadmium coordination polymers have various compositions and structures, depending on crystallization conditions. The prepared compounds are characterized by single-crystal XRD, powder XRD, IR spectroscopy, and CHN analysis. Noncovalent interactions are analyzed using the Hirshfeld surface analysis. It is determined that the crystal packings is mainly stabilized by π⋯π, C–H⋯F, and C–F⋯π interactions. The photoluminescent properties of the 5Eu and 5Tb complexes are studied. It is shown that the structure-forming effects of non-covalent “arene–perfluoroarene” interactions can be possibly used for preorganizing reactive functional groups in the crystal.