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Abstract <p>New mononuclear tin(IV) complexes are synthesized by the condensation of diphenyltin oxide Ph<sub>2</sub>SnO with a number of Schiff bases containing the hydrazone fragment. The structures of the complexes are confirmed by <sup>1</sup>H, <sup>13</sup>C, and <sup>119</sup>Sn NMR spectroscopy and X-ray diffraction (XRD) (CIF files CCDC nos. 2443096 (<b>IV</b>) and 2443095 (<b>V</b>)). The electronic and redox properties of complexes <b>I</b>–<b>V</b> are studied using UV spectroscopy and cyclic voltammetry, and the energy bandgap is estimated. The electrochemical oxidation and reduction of complexes <b>I</b>, <b>II</b>, <b>IV</b>, and <b>V</b> are irreversible and accompanied by further chemical transformations. Unlike them, the electroreduction of complex <b>III</b> with the pincer ligand leads to the formation of stable radical anion species.</p>

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Mononuclear Diphenyltin(IV) Complexes with Salicylaldimine Schiff Bases: Synthesis, Structures, and Electrochemical Properties

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • P. G. Shangin,
  • V. A. Klok,
  • I. V. Krylova,
  • M. E. Minyaev,
  • E. V. Tretyakov,
  • M. A. Syroeshkin,
  • V. M. Pechennikov,
  • M. P. Egorov,
  • E. N. Nikolaevskaya

摘要

Abstract

New mononuclear tin(IV) complexes are synthesized by the condensation of diphenyltin oxide Ph2SnO with a number of Schiff bases containing the hydrazone fragment. The structures of the complexes are confirmed by 1H, 13C, and 119Sn NMR spectroscopy and X-ray diffraction (XRD) (CIF files CCDC nos. 2443096 (IV) and 2443095 (V)). The electronic and redox properties of complexes I–V are studied using UV spectroscopy and cyclic voltammetry, and the energy bandgap is estimated. The electrochemical oxidation and reduction of complexes I, II, IV, and V are irreversible and accompanied by further chemical transformations. Unlike them, the electroreduction of complex III with the pincer ligand leads to the formation of stable radical anion species.