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<p>This work focuses on the preparation and characterization of new copper(I) Schiff base complexes, <b>[Cu(L</b><sup><b>C</b></sup><b>)I]</b><sub><b>n</b></sub> (<b>L</b><sup><b>C</b></sup> = <i>N</i>,<i> N´</i>-bis(4-chlorobenzylidene)ethane-1,2-diamine), <b>[Cu(L</b><sup><b>B</b></sup><b>)I]</b><sub><b>n</b></sub> (<b>L</b><sup><b>B</b></sup> = <i>N</i>,<i> N´</i>-bis(4-bromobenzylidene)ethane-1,2-diamine), and <b>[Cu(L</b><sup><b>N</b></sup><b>)I]</b><sub><b>n</b></sub> (<b>L</b><sup><b>N</b></sup> = <i>N</i>,<i> N´</i>-bis(4-nitrobenzylidene)ethane-1,2-diamine). A one-dimensional polymeric structure of <b>[Cu(L</b><sup><b>B</b></sup><b>)I]</b><sub><b>n</b></sub> was confirmed through single-crystal X-ray diffraction (SC-XRD) analysis. The copper atom is coordinated in a distorted tetrahedral fashion by a Schiff base ligand and two iodide ions. Hirshfeld surface analysis is done to explore intermolecular interactions in terms of interatomic contacts. Electrochemical studies revealed that these Cu complexes undergo quasi-reversible oxidation (involving Cu<sup>II</sup>/Cu<sup>I</sup> redox couple) under experimental conditions. Also, the results of cyclic voltammetry (CV) investigations disclosed that the redox reaction of <b>[Cu(L</b><sup><b>B</b></sup><b>)I]</b><sub><b>n</b></sub> and <b>[Cu(L</b><sup><b>N</b></sup><b>)I]</b><sub><b>n</b></sub> are more reversible than <b>[Cu(L</b><sup><b>C</b></sup><b>)I]</b><sub><b>n</b></sub>.</p>

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Copper(I) coordination polymers with bidentate schiff base ligands: synthesis, spectral characterization, crystal structures, and electrochemical analysis

  • 期刊论文

  • 发表日期：

    2026年1月5日

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  • Hadi Kargar,
  • Mehdi Fallah-Mehrjardi,
  • Hamid Reza Zare-Mehrjardi,
  • Necmi Dege,
  • Muhammad Ashfaq,
  • Khurram Shahzad Munawar,
  • Muhammad Nawaz Tahir

摘要

This work focuses on the preparation and characterization of new copper(I) Schiff base complexes, [Cu(LC)I]n (LC = N, N´-bis(4-chlorobenzylidene)ethane-1,2-diamine), [Cu(LB)I]n (LB = N, N´-bis(4-bromobenzylidene)ethane-1,2-diamine), and [Cu(LN)I]n (LN = N, N´-bis(4-nitrobenzylidene)ethane-1,2-diamine). A one-dimensional polymeric structure of [Cu(LB)I]n was confirmed through single-crystal X-ray diffraction (SC-XRD) analysis. The copper atom is coordinated in a distorted tetrahedral fashion by a Schiff base ligand and two iodide ions. Hirshfeld surface analysis is done to explore intermolecular interactions in terms of interatomic contacts. Electrochemical studies revealed that these Cu complexes undergo quasi-reversible oxidation (involving CuII/CuI redox couple) under experimental conditions. Also, the results of cyclic voltammetry (CV) investigations disclosed that the redox reaction of [Cu(LB)I]n and [Cu(LN)I]n are more reversible than [Cu(LC)I]n.