Investigating the catalytic properties of dinuclear Schiff base copper (II) complex in the reduction of nitro aromatics and dyes

IF 2.1 3区化学 Q2 CHEMISTRY, ORGANIC

Tetrahedron Pub Date : 2025-06-26 DOI:10.1016/j.tet.2025.134798

Abu Taha, Nowsheenah Farooq, Nitu Singh, Mohammad Shaheer, Saleem Javed, Maqsood Ahmad Malik, Athar Adil Hashmi

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引用次数: 0

Abstract

The release of harmful pollutants such as aromatic nitro compounds (ANCs) and synthetic organic dyes into the water bodies has posed a serious concern to the environment as well as humans. ANCs are considered to be very harmful for human health hence categorized as priority pollutants by Environmental Protection Agency (EPA). The need of the present time is to check these harmful organic pollutants from water bodies and other media using advanced techniques. There are several methods for the removal of these pollutants from water bodies, such as adsorption, reduction, oxidation, etc. Herein, we have synthesized a Schiff base dinuclear copper (II) complex (SBDC) for rapid reduction of ANCs and organic dyes. The synthesized Schiff base ligand (SBL) and SBDC were characterized by FT-IR, 1H NMR, ESI-MS, UV–visible spectroscopy, elemental analysis, EDX, elemental mapping, and FE-SEM. Theoretical studies like structure optimization, molecular electrostatic potential (MEP) and frontier molecular orbital (FMO) also done for SBL and SBDC. The SBDC was found to be very efficient for the reduction of aromatic nitro compounds and synthetic organic dyes. Reaction kinetics, rate constant, and other calculations were performed using pseudo-first-order kinetics for 4-nitrophenol, 4-nitroaniline, nitrobenzene, methyl orange, and Rhodamine B.

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研究了双核希夫碱铜（II）配合物在还原硝基芳烃和染料中的催化性能

芳香族硝基化合物（aromatic nitrocompounds, ANCs）和合成有机染料（synthetic organic dye）等有害污染物向水体中释放，对环境和人类都造成了严重的影响。三聚氰胺对人体健康危害极大，被美国环境保护署列为重点污染物。目前的需要是利用先进的技术来检测这些来自水体和其他介质的有害有机污染物。从水体中去除这些污染物的方法有吸附法、还原法、氧化法等。在此，我们合成了一种席夫碱双核铜（II）配合物（SBDC），用于快速还原ANCs和有机染料。采用FT-IR、1H NMR、ESI-MS、uv -可见光谱、EDX、元素图谱和FE-SEM对合成的希夫碱配体（SBL）和SBDC进行了表征。对SBL和SBDC进行了结构优化、分子静电势（MEP）和前沿分子轨道（FMO）等理论研究。SBDC对芳香族硝基化合物和合成有机染料的还原效率很高。4-硝基苯酚、4-硝基苯胺、硝基苯、甲基橙和罗丹明B的反应动力学、速率常数和其他计算使用伪一级动力学进行。

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来源期刊

Tetrahedron 化学-有机化学

CiteScore

3.90

自引率

4.80%

发文量

439

审稿时长

34 days

期刊介绍： Tetrahedron publishes full accounts of research having outstanding significance in the broad field of organic chemistry and its related disciplines, such as organic materials and bio-organic chemistry. Regular papers in Tetrahedron are expected to represent detailed accounts of an original study having substantially greater scope and details than that found in a communication, as published in Tetrahedron Letters. Tetrahedron also publishes thematic collections of papers as special issues and ''Reports'', commissioned in-depth reviews providing a comprehensive overview of a research area.