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[1]贺琦祺,杨克聪,江梦云,等.不同抗衡阴离子自旋交叉分子的制备与表征[J].武汉工程大学学报,2021,43(06):637-642.[doi:10.19843/j.cnki.CN42-1779/TQ.202009014]
 HE Qiqi,YANG Kecong,JIANG Mengyun,et al.Preparation and Characterization of Spin Crossover Molecules with Different Counter Anions[J].Journal of Wuhan Institute of Technology,2021,43(06):637-642.[doi:10.19843/j.cnki.CN42-1779/TQ.202009014]
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不同抗衡阴离子自旋交叉分子的制备与表征(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
43
期数:
2021年06期
页码:
637-642
栏目:
材料科学与工程
出版日期:
2021-12-31

文章信息/Info

Title:
Preparation and Characterization of Spin Crossover Molecules with Different Counter Anions
文章编号:
1674 - 2869(2021)06 - 0637 - 06
作者:
贺琦祺杨克聪江梦云桂子欣罗雪敏陈 畅吴远帅石胜伟*
武汉工程大学材料科学与工程学院,湖北 武汉 430205
Author(s):
HE QiqiYANG KecongJIANG MengyunGUI ZixinLUO XueminCHEN ChangWU YuanshuaiSHI Shengwei*
School of Materials Science and Engineering,Wuhan Institute of Technology,Wuhan 430205, China
关键词:
自旋交叉三氮唑自旋转变室温抗衡阴离子磁性
Keywords:
spin crossover124-triazolespin transitionroom temperaturecounter anionsmagnetic property
分类号:
O646.8
DOI:
10.19843/j.cnki.CN42-1779/TQ.202009014
文献标志码:
A
摘要:
基于三氮唑(1,2,4-1H-triazole,Htrz)体系的Fe(II)的配合物是一类非常重要的在室温附近发生自旋转变的自旋交叉分子,具有潜在的应用。本文报道了2种基于三氮唑体系的Fe(II)的配合物的制备与表征,分别为[Fe(Htrz)2(trz)](CF3SO3)和[Fe(Htrz)2(trz)](BF4),并研究了抗衡阴离子对自旋转变行为的影响。自旋交叉分子的制备由2种前驱体简单混合反应而得,结构表征表明三氮唑参与反应,并且产物中的Fe元素基本为Fe(II),磁性测试证实了这2种分子存在自旋转变特性,并且这种自旋转变具有温度磁滞效应。实验结果还表明抗衡阴离子对于自旋交叉分子的自旋转变行为有重要的影响。抗衡阴离子空间位阻越小、抗衡阴离子的电负性越强、结构越对称规整,则自旋转变温度越高。
Abstract:
The Fe(II) spin crossover complex (SCO) based on 1,2,4-1H-triazole(Htrz) is an important molecule with the spin transition around room temperature,showing promising applications. The synthesis and characterizations of two Fe (II) SCOs based on Htrz were reported,including [Fe(Htrz)2(trz)](CF3SO3) and [Fe(Htrz)2(trz)](BF4), and the effect of counter anions on spin transition is also investigated. SCO molecules were prepared by mixing two precursors. The structure characterizations indicate that the Htrz participates in the reaction as a ligand and the Fe is in the valence state of 2. The magnetic measurements confirm the spin transition with the temperature induced hysteresis in the two SOC molecules. The results further indicate that the counter anions have important effects on spin transition of SCO molecules. When the counter anion has smaller steric and stronger electronegativity,and the molecular structure is more symmetrical and regular, the SCO molecules demonstrate higher spin transition temperature.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-09-20基金项目:湖北省自然科学基金(2019CFC862);发光材料与器件国家重点实验室开放基金(2019-skllmd-14);武汉工程大学第十四期大学生校长基金(XZJJ2019070)作者简介:贺琦祺,硕士研究生。E-mail:1223065127@qq.com*通讯作者:石胜伟,博士,特聘教授。E-mail:shisw@wit.edu.cn引文格式:贺琦祺,杨克聪,江梦云,等. 不同抗衡阴离子自旋交叉分子的制备与表征[J]. 武汉工程大学学报,2021,43(6):637-642.
更新日期/Last Update: 2021-12-27