冠醚-咪唑型铁基超分子材料的合成、结构及电学性能
Synthesis,Structure and Electrical Properties of Crown Ether-Imidazole Type Iron-Based Supramolecular Materials
努尔曼·依斯马依力 1胡宏志 2王娜 1刘洋 3刘尊奇3
作者信息
- 1. 新疆农业大学 化学化工学院,乌鲁木齐 830052
- 2. 新疆农业大学 化学化工学院,乌鲁木齐 830052;聚合物新型成型装备国家工程研究中心新疆分中心,乌鲁木齐 830052
- 3. 新疆农业大学 化学化工学院,乌鲁木齐 830052;聚合物新型成型装备国家工程研究中心新疆分中心,乌鲁木齐 830052;新疆农业化学与生物材料重点实验室,乌鲁木齐 830052
- 折叠
摘要
以咪唑、三氯化铁和二苯并-18-冠醚-6为原料,通过自然蒸发法在乙腈溶剂中获得了一种有机-无机杂化超分子材料(C3H5N2)+(DB-18-Crown-6)(FeCl4)-.通过红外光谱、单晶X-射线衍射、粉末X-射线衍射、热重分析、介电常数和电化学等对其结构和性能进行表征.结果显示,(C3H5N2)+(DB-18-Crown-6)(FeCl4)-在低温(100 K)和室温(293 K)的空间群为Ia,属于单斜晶系,在空间结构内超分子阳离子(C3H5N2)+(DB-18-Crown-6)与阴离子(FeCl4)-以 N-H…O、C-H…O、C-H…Cl等氢键相互作用形成二维网状超分子结构.介电测试显示(C3H5N2)+(DB-18-Crown-6)(FeCl4)-在升温和降温的过程中均在160～200 K和220～260 K产生两个阶梯型介电异常峰,其循环伏安测试表明(C3H5N2)+(DB-18-Crown-6)(FeCl4)-具有明显的电子转移性能,显示(C3H5N2)+(DB-18-Crown-6)(FeCl4)-是一种新型的介电异常及电化学性能材料.
Abstract
This research aims to obtain a novel organic-inorganic hybrid supramolecular material(C3H5N2)+(DB-18-Crown-6)(FeCl4)-by natural evaporation method in acetonitrile solvent using imidaz-ole,ferric chloride and dibenzo-18-crown-6 as raw materials.Its structure and properties were characterized by infrared spectroscopy,single crystal X-ray diffraction,powder X-ray diffraction,dielectric constant ther-mogravimetric and electrochemistry analysis.The results of single crystal X-ray diffraction showed that the space group of(C3H5N2)+(DB-18-Crown-6)(FeCl4)-at low temperature(100 K)and room tempera-ture(293 K)was Ia,which belonged to monoclinic system.In the space structure,the supramolecular cation(C3H5N2)+(DB-18-Crown-6)and the anion(FeCl4)-formed a two-dimensional network supramo-lecular structure by hydrogen-bonding interactions such as N-H…O,C-H…O,C-H…Cl.The dielectric test showed that(C3H5N2)+(DB-18-Crown-6)(FeCl4)-produced two stepped dielectric anomaly peaks in the temperature range of 160-200 K and 220-260 K during heating and cooling processes.The cyclic voltam-metry test showed that(C3H5N2)+(DB-18-Crown-6)(FeCl4)-had good electron transfer performance,in-dicating that(C3H5N2)+(DB-18-Crown-6)(FeCl4)-was a new type of dielectric anomaly and electrochem-ical performance material.
关键词
二苯并-18-冠醚-6/咪唑/超分子材料/氢键/阶梯型介电异常Key words
dibenzo-18-crown-6/imidazole/supermolecular materials/hydrogen bond/step-type dielec-tric anomaly引用本文复制引用
基金项目
新疆维吾尔自治区自然科学基金面上项目(2022D01A76)
新疆维吾尔自治区重点研发专项(2022B02033-3)
新疆维吾尔自治区重点研发专项(2022B02049-3)
国家自然科学基金(21561030)
新疆维吾尔自治区"天山英才"计划()
出版年
2023
NETL
NSTL
万方数据