Spin Crossover in Iron(II) Complexes with 2,6-bis(1H-imidazol-2-yl)Pyridines. Review

IF 1.2 4区 化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR
L. G. Lavrenova
{"title":"Spin Crossover in Iron(II) Complexes with 2,6-bis(1H-imidazol-2-yl)Pyridines. Review","authors":"L. G. Lavrenova","doi":"10.1134/S0022476625040158","DOIUrl":null,"url":null,"abstract":"<p>This review presents the results of a cycle of works on the synthesis and analysis of iron(II) coordination compounds with polynitrogeneous heterocyclic ligands - 2,6-bis(1<i>H</i>-imidazol-2-yl)pyridine derivatives. Ligands of this class are coordinated to the Fe(II) ion in the tridentate cyclic mode via two nitrogen atoms of imidazole rings and the pyridine nitrogen atom with the formation of [<i>M</i>L<sub>2</sub>]<sup>2+</sup> cation complexes (FeN<sub>6</sub> coordination core). The study of the temperature dependence of magnetic susceptibility shows that the majority of complexes obtained exhibit spin crossover <sup>1</sup><i>A</i><sub>1</sub> ↔ <sup>5</sup><i>T</i><sub>2</sub>. In a number of compounds, a change in spin multiplicity is accompanied by thermochromism. The factors affecting the spin crossover temperature and character are discussed.</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":"66 4","pages":"803 - 867"},"PeriodicalIF":1.2000,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Structural Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S0022476625040158","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0

Abstract

This review presents the results of a cycle of works on the synthesis and analysis of iron(II) coordination compounds with polynitrogeneous heterocyclic ligands - 2,6-bis(1H-imidazol-2-yl)pyridine derivatives. Ligands of this class are coordinated to the Fe(II) ion in the tridentate cyclic mode via two nitrogen atoms of imidazole rings and the pyridine nitrogen atom with the formation of [ML2]2+ cation complexes (FeN6 coordination core). The study of the temperature dependence of magnetic susceptibility shows that the majority of complexes obtained exhibit spin crossover 1A1 ↔ 5T2. In a number of compounds, a change in spin multiplicity is accompanied by thermochromism. The factors affecting the spin crossover temperature and character are discussed.

与2,6-双(1h -咪唑-2-基)吡啶配合物的自旋交叉。审查
本文综述了含多氮杂环配体- 2,6-双(1h -咪唑-2-基)吡啶衍生物的铁(II)配位化合物的合成和分析的一系列工作结果。该类配体通过咪唑环的两个氮原子和吡啶氮原子与Fe(II)离子以三齿环模式配位,形成[ML2]2+阳离子配合物(FeN6配位核)。磁化率的温度依赖性研究表明,获得的大多数配合物表现出1A1↔5T2的自旋交叉。在许多化合物中,自旋多重性的变化伴随着热致变色。讨论了影响自旋交叉温度和特性的因素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Journal of Structural Chemistry
Journal of Structural Chemistry 化学-无机化学与核化学
CiteScore
1.60
自引率
12.50%
发文量
142
审稿时长
8.3 months
期刊介绍: Journal is an interdisciplinary publication covering all aspects of structural chemistry, including the theory of molecular structure and chemical bond; the use of physical methods to study the electronic and spatial structure of chemical species; structural features of liquids, solutions, surfaces, supramolecular systems, nano- and solid materials; and the crystal structure of solids.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信