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Abstract <p>A series of binuclear cyclometalated carboxylate-bridge palladium(II) complexes of general formula [(2-phpy)Pd(OOCR)]<sub>2</sub>, where R = Et (V), <i>n</i>-Pr (VI), and <i>n</i>-Bu (VII), has been synthesized. Bimetallic complex [PdNi(OOCMe)<sub>4</sub>] (I) has been used as a reactive precursor. At the first stage, a metathesis reaction of complex I with aliphatic carboxylic acids (propionic, butyric, and valeric) was carried out to form intermediate heterometallic compounds of the type [PdNi(OOCR)<sub>4</sub>] (II–IV). At the second stage, their reaction with 2-phenylpyridine (2-phpy) leads to ortho-metalation and the formation of the target binuclear cyclometalated complexes V–VII in high yields. Molecular structures of complexes V–VII have been determined by X-ray diffraction analysis (CIF files CCDC no. 2425979 (V), 2425980 (VI), 2425981 (VII)).</p>

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Synthesis and Structure of Binuclear Cyclometalated Pd(II) Complexes with Aliphatic Carboxylic Acids

  • 期刊论文

  • 发表日期：

    2026年1月1日

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  • M. V. Panina,
  • A. D. Maksimova,
  • O. V. Sulimova,
  • J. E. Makarevich,
  • P. V. Dorovatovskii,
  • I. A. Yakushev

摘要

Abstract

A series of binuclear cyclometalated carboxylate-bridge palladium(II) complexes of general formula [(2-phpy)Pd(OOCR)]2, where R = Et (V), n-Pr (VI), and n-Bu (VII), has been synthesized. Bimetallic complex [PdNi(OOCMe)4] (I) has been used as a reactive precursor. At the first stage, a metathesis reaction of complex I with aliphatic carboxylic acids (propionic, butyric, and valeric) was carried out to form intermediate heterometallic compounds of the type [PdNi(OOCR)4] (II–IV). At the second stage, their reaction with 2-phenylpyridine (2-phpy) leads to ortho-metalation and the formation of the target binuclear cyclometalated complexes V–VII in high yields. Molecular structures of complexes V–VII have been determined by X-ray diffraction analysis (CIF files CCDC no. 2425979 (V), 2425980 (VI), 2425981 (VII)).