Dy, Er和Yb三磷酸配合物的分子磁性和固相转变

IF 5.1 2区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Svetlana P. Petrosyants, Konstantin A. Babeshkin, Alina S. Galkina, Andrey B. Ilyukhin, Nikolay N. Efimov and Igor L. Eremenko
{"title":"Dy, Er和Yb三磷酸配合物的分子磁性和固相转变","authors":"Svetlana P. Petrosyants, Konstantin A. Babeshkin, Alina S. Galkina, Andrey B. Ilyukhin, Nikolay N. Efimov and Igor L. Eremenko","doi":"10.1039/D5TC00871A","DOIUrl":null,"url":null,"abstract":"<p >New complexes containing Dy, Er and Yb, namely, [LnT<small><sub>3</sub></small>(H<small><sub>2</sub></small>O)<small><sub>2</sub></small>]·0.5H<small><sub>2</sub></small>O (<strong>1Ln</strong>), [LnT<small><sub>3</sub></small>HT]<small><sub>2</sub></small> (<strong>2Ln</strong>) and <strong>2Dy<small><sub><em>n</em></sub></small></strong>, where HT = 2-hydroxycyclohepta-2,4,6-trien-1-one, were synthesized and structurally characterized. The coordination number of Ln in isolated compounds is 8, and the coordination site is LnO<small><sub>8</sub></small>. The thermolysis of <strong>1Ln</strong> and <strong>2Ln</strong> results in the removal of coordinated and solvating water molecules and the formation of Ln<small><sub>2</sub></small>OT<small><sub>4</sub></small>. All synthesized compounds exhibit slow relaxation of magnetization under an external dc-field, and complex <strong>1Dy</strong> exhibits slow relaxation even under zero dc-field. The diamagnetic dilution of <strong>1Dy</strong> with an isomorphic yttrium complex resulted in the formation of <strong>1DyY</strong> and allowed us to mitigate a considerable involvement of the quantum tunneling of magnetization (QTM) in the magnetization reversal in zero dc-field. The relaxation paths for <strong>1Er</strong> and <strong>2Er</strong> involve the Orbach mechanism, with the corresponding energy barriers determined to be 39 K and 33 K, respectively.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 32","pages":" 16468-16477"},"PeriodicalIF":5.1000,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Molecular magnetism and solid-phase transformations of Dy, Er, and Yb tropolonate complexes†\",\"authors\":\"Svetlana P. Petrosyants, Konstantin A. Babeshkin, Alina S. Galkina, Andrey B. Ilyukhin, Nikolay N. Efimov and Igor L. Eremenko\",\"doi\":\"10.1039/D5TC00871A\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >New complexes containing Dy, Er and Yb, namely, [LnT<small><sub>3</sub></small>(H<small><sub>2</sub></small>O)<small><sub>2</sub></small>]·0.5H<small><sub>2</sub></small>O (<strong>1Ln</strong>), [LnT<small><sub>3</sub></small>HT]<small><sub>2</sub></small> (<strong>2Ln</strong>) and <strong>2Dy<small><sub><em>n</em></sub></small></strong>, where HT = 2-hydroxycyclohepta-2,4,6-trien-1-one, were synthesized and structurally characterized. The coordination number of Ln in isolated compounds is 8, and the coordination site is LnO<small><sub>8</sub></small>. The thermolysis of <strong>1Ln</strong> and <strong>2Ln</strong> results in the removal of coordinated and solvating water molecules and the formation of Ln<small><sub>2</sub></small>OT<small><sub>4</sub></small>. All synthesized compounds exhibit slow relaxation of magnetization under an external dc-field, and complex <strong>1Dy</strong> exhibits slow relaxation even under zero dc-field. The diamagnetic dilution of <strong>1Dy</strong> with an isomorphic yttrium complex resulted in the formation of <strong>1DyY</strong> and allowed us to mitigate a considerable involvement of the quantum tunneling of magnetization (QTM) in the magnetization reversal in zero dc-field. The relaxation paths for <strong>1Er</strong> and <strong>2Er</strong> involve the Orbach mechanism, with the corresponding energy barriers determined to be 39 K and 33 K, respectively.</p>\",\"PeriodicalId\":84,\"journal\":{\"name\":\"Journal of Materials Chemistry C\",\"volume\":\" 32\",\"pages\":\" 16468-16477\"},\"PeriodicalIF\":5.1000,\"publicationDate\":\"2025-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Chemistry C\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2025/tc/d5tc00871a\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry C","FirstCategoryId":"1","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2025/tc/d5tc00871a","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

摘要

合成了含Dy、Er和Yb的新配合物[LnT3(H2O)2]·0.5H2O (1Ln), [LnT3HT]2 (2Ln)和2Dyn,其中HT = 2-羟基环庚-2,4,6-三烯-1- 1。分离的化合物中Ln的配位数为8,配位位为LnO8。1Ln和2Ln的热裂解导致配位和溶剂化水分子的去除和ln2o4的生成。所有合成的化合物在外加直流场下都表现出缓慢的磁化弛豫,而配合物1Dy即使在零直流场下也表现出缓慢的弛豫。用同形钇配合物对1Dy进行抗磁稀释,形成了1DyY,并使我们能够减轻零直流场磁化反转中量子隧穿磁化(QTM)的相当大的参与。1Er和2Er的弛豫路径涉及奥巴赫机制,其对应的能垒分别为39 K和33 K。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Molecular magnetism and solid-phase transformations of Dy, Er, and Yb tropolonate complexes†

Molecular magnetism and solid-phase transformations of Dy, Er, and Yb tropolonate complexes†

New complexes containing Dy, Er and Yb, namely, [LnT3(H2O)2]·0.5H2O (1Ln), [LnT3HT]2 (2Ln) and 2Dyn, where HT = 2-hydroxycyclohepta-2,4,6-trien-1-one, were synthesized and structurally characterized. The coordination number of Ln in isolated compounds is 8, and the coordination site is LnO8. The thermolysis of 1Ln and 2Ln results in the removal of coordinated and solvating water molecules and the formation of Ln2OT4. All synthesized compounds exhibit slow relaxation of magnetization under an external dc-field, and complex 1Dy exhibits slow relaxation even under zero dc-field. The diamagnetic dilution of 1Dy with an isomorphic yttrium complex resulted in the formation of 1DyY and allowed us to mitigate a considerable involvement of the quantum tunneling of magnetization (QTM) in the magnetization reversal in zero dc-field. The relaxation paths for 1Er and 2Er involve the Orbach mechanism, with the corresponding energy barriers determined to be 39 K and 33 K, respectively.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Journal of Materials Chemistry C
Journal of Materials Chemistry C MATERIALS SCIENCE, MULTIDISCIPLINARY-PHYSICS, APPLIED
CiteScore
10.80
自引率
6.20%
发文量
1468
期刊介绍: The Journal of Materials Chemistry is divided into three distinct sections, A, B, and C, each catering to specific applications of the materials under study: Journal of Materials Chemistry A focuses primarily on materials intended for applications in energy and sustainability. Journal of Materials Chemistry B specializes in materials designed for applications in biology and medicine. Journal of Materials Chemistry C is dedicated to materials suitable for applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry C are listed below. This list is neither exhaustive nor exclusive. Bioelectronics Conductors Detectors Dielectrics Displays Ferroelectrics Lasers LEDs Lighting Liquid crystals Memory Metamaterials Multiferroics Photonics Photovoltaics Semiconductors Sensors Single molecule conductors Spintronics Superconductors Thermoelectrics Topological insulators Transistors
×
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:604180095
Book学术官方微信