Synthesis and Characterization of Novel Selenium Bearing 24- and 28-Membered Macrocyclic Schiff Bases and Their Reactivity with Hg (II) Ion

Q3 Materials Science

Macromolecular Symposia Pub Date : 2025-02-17 DOI:10.1002/masy.202400176

Bhaskar Banerjee, Rajaneesh Kumar Verma, Nidhi Jain, Tarun Yadav, Mustafa A. Alheetyc, M. Z. A. Yahya, Munendra Singh, Vinay Kumar Verma, Ram Chandra Singh

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引用次数: 0

Abstract

The present study reports the synthesis of novel selenium containing 24 (1)- and 28 (2)-membered macrocyclic Schiff base ligands and their reactivity with Hg(II) metal ion to form complex 3 and 4, respectively. The synthesis of the ligands are carried out by a simple condensation of 2,6-dibenzoyl-4-methylphenol and bis(aminoethyl/propyl)selenides in [2+2] dipodal manner in dry acetonitrile solvent under inert atmosphere. Furthermore, the reaction between the 24- and 28-membered selenium containing ligands and Hg(II) metal ion are carried out in dry methanol in argon atmosphere. Following the complexation of both the ligands, 1 (C₅₀H₄₈O₂N₄Se₂) and 2 (C₅₄H₅₆O₂N₄Se₂) when reacted with HgBr₂ yields monometallic complexes 3 and 4 with molecular composition of C₅₀H₅₀O₃N₄Se₂HgBr₂ and C₅₄H₅₈O₃N₄Se₂HgBr₂, respectively, as calculated via elemental analysis and mass spectrometry. Moreover, the synthesized compounds are also characterized by various physicochemical techniques to determine the structure and reactivity, which includes UV–vis, FT-IR, multinuclear (¹H and ⁷⁷Se) NMR, and cyclic voltammetry.

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新型含硒24和28元大环席夫碱的合成、表征及其与Hg （II）离子的反应性

本研究报告了新型含硒 24 (1) 元和 28 (2) 元大环希夫碱配体的合成及其分别与 Hg(II) 金属离子反应生成配合物 3 和 4 的过程。配体的合成是在惰性气氛下，在干燥的乙腈溶剂中通过 2,6-二苯甲酰基-4-甲基苯酚和双(氨基乙基/丙基)硒化物的简单缩合，以[2+2]二极方式进行的。此外，24 元和 28 元含硒配体与 Hg(II) 金属离子的反应是在干燥甲醇中的氩气环境下进行的。经元素分析和质谱计算，配体 1（C50H48O2N4Se2）和配体 2（C54H56O2N4Se2）与 HgBr2 反应后生成单金属配合物 3 和 4，其分子组成分别为 C50H50O3N4Se2HgBr2 和 C54H58O3N4Se2HgBr2。此外，还利用各种理化技术对合成化合物进行了表征，以确定其结构和反应性，包括紫外-可见光、傅立叶变换红外光谱、多核（1H 和 77Se）核磁共振和循环伏安法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Macromolecular Symposia Materials Science-Polymers and Plastics

CiteScore

1.50

自引率

0.00%

发文量

226

期刊介绍： Macromolecular Symposia presents state-of-the-art research articles in the field of macromolecular chemistry and physics. All submitted contributions are peer-reviewed to ensure a high quality of published manuscripts. Accepted articles will be typeset and published as a hardcover edition together with online publication at Wiley InterScience, thereby guaranteeing an immediate international dissemination.