Scholarlink

<p>A coordination compound was synthesized under hydrothermal conditions in this study, namely [Cd(nhba)(H<sub>2</sub>biim)<sub>2</sub>(H<sub>2</sub>O)] <b>(1)</b>, (H₂nhba = 3-nitro-4-hydroxybenzoic acid, H<sub>2</sub>biim = 2,2’-biimidazole). Cd(II) forms an octahedral geometry via six-coordination, with the coordinating atoms being four N atoms from the imidazole rings of two 2,2’-biimidazole molecules, and two O atoms derived respectively from a nhba<sup>2−</sup> and a water molecule. Adjacent molecules form a one-dimensional chains by <i>π-π</i> interactions and hydrogen bond interactions. Furthermore, one-dimensional chains are extended into a three-dimensional supramolecular structure through hydrogen bond interactions. The compound (1) was characterized by single-crystal X-ray diffraction, UV–Vis analysis, powder X-ray diffraction, infrared (IR) spectroscopy, photoluminescence (PL) spectroscopy, thermogravimetric (TGA) analysis and Hirshfeld surface analysis. The compound (1) shows effective detection of Cu²⁺, MnO₄²⁻, and Cr₂O₇²⁻ in aqueous solution, characterized by good resistance to interference, high sensitivity, efficient fluorescence quenching, and low detection limits (LOD), indicating its potential applicability as a sensing material.</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 and Characterization of a Cd (II) Coordination Compound with Efficient and Selective Detection of Cu²⁺, Cr₂O₇²⁻ and MnO₄²⁻

  • 期刊论文

  • 发表日期：

    2026年4月18日

查看全文
  • Xinxin Yi,
  • Xin Li,
  • Shilong Song,
  • Jiyue Tang,
  • Minghe Cui,
  • Xiuyan Wang

摘要

A coordination compound was synthesized under hydrothermal conditions in this study, namely [Cd(nhba)(H2biim)2(H2O)] (1), (H₂nhba = 3-nitro-4-hydroxybenzoic acid, H2biim = 2,2’-biimidazole). Cd(II) forms an octahedral geometry via six-coordination, with the coordinating atoms being four N atoms from the imidazole rings of two 2,2’-biimidazole molecules, and two O atoms derived respectively from a nhba2− and a water molecule. Adjacent molecules form a one-dimensional chains by π-π interactions and hydrogen bond interactions. Furthermore, one-dimensional chains are extended into a three-dimensional supramolecular structure through hydrogen bond interactions. The compound (1) was characterized by single-crystal X-ray diffraction, UV–Vis analysis, powder X-ray diffraction, infrared (IR) spectroscopy, photoluminescence (PL) spectroscopy, thermogravimetric (TGA) analysis and Hirshfeld surface analysis. The compound (1) shows effective detection of Cu²⁺, MnO₄²⁻, and Cr₂O₇²⁻ in aqueous solution, characterized by good resistance to interference, high sensitivity, efficient fluorescence quenching, and low detection limits (LOD), indicating its potential applicability as a sensing material.