Scholarlink

<p>A Schiff base nickel(II) complex, bis{5-(Diethylamino)-2-[(methylimino)methyl]phenolato}-nickel(II), was synthesized using 4-(Diethylamino)salicylaldehyde, methylamine, and nickel chloride hexahydrate. Understanding the crystal structure and its characterization is essential for potential applications in catalysis, materials science, and coordination chemistry. The crystal was analyzed by single-crystal X-ray diffraction and was found to crystallize in a monoclinic crystal system with a <i>P</i>2<sub>1</sub>/c space group. It was characterized using UV–vis, IR, <sup>1</sup>H and <sup>13</sup>C NMR, mass spectrometry, and thermogravimetry (TG). The azomethine (–C=N) group was confirmed by a peak at 1591&#xa0;cm<sup>−1</sup> from IR. The monomeric mass, m/z = 468&#xa0;g mol<sup>−1</sup>, was obtained from mass spectrometry. The complex was thermally stable up to 312&#xa0;°C and melted between 215 and 219&#xa0;°C. It produced a carbonaceous nickel(II) oxide (NiO/C) residue at 500&#xa0;°C. The Hirshfeld surface study showed that the H…H interaction (66.68%) contributes the most to crystal packing, followed by C…H (21.7%), O…H (4.8%), and N…H (4.0%). The DFT study yielded a value of 3.79&#xa0;eV for the HOMO–LUMO band gap (ΔE).</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Synthesis, characterization and crystal structure of bis{5-(diethylamino)-2-[(methylimino)methyl]phenolato}-nickel(II)

  • 期刊论文

  • 发表日期：

    2025年8月3日

查看全文
  • M. Ganesan,
  • S. Arockiasamy

摘要

A Schiff base nickel(II) complex, bis{5-(Diethylamino)-2-[(methylimino)methyl]phenolato}-nickel(II), was synthesized using 4-(Diethylamino)salicylaldehyde, methylamine, and nickel chloride hexahydrate. Understanding the crystal structure and its characterization is essential for potential applications in catalysis, materials science, and coordination chemistry. The crystal was analyzed by single-crystal X-ray diffraction and was found to crystallize in a monoclinic crystal system with a P21/c space group. It was characterized using UV–vis, IR, 1H and 13C NMR, mass spectrometry, and thermogravimetry (TG). The azomethine (–C=N) group was confirmed by a peak at 1591 cm−1 from IR. The monomeric mass, m/z = 468 g mol−1, was obtained from mass spectrometry. The complex was thermally stable up to 312 °C and melted between 215 and 219 °C. It produced a carbonaceous nickel(II) oxide (NiO/C) residue at 500 °C. The Hirshfeld surface study showed that the H…H interaction (66.68%) contributes the most to crystal packing, followed by C…H (21.7%), O…H (4.8%), and N…H (4.0%). The DFT study yielded a value of 3.79 eV for the HOMO–LUMO band gap (ΔE).