2D Quantum Spin-Liquid Candidate Including a Chiral Anion: κ-(BEDT-TTF)2[BR/S(salicylate)2]

IF 14.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Journal of the American Chemical Society Pub Date : 2025-02-06 DOI:10.1021/jacs.4c12386
Toby J. Blundell, Kathryn Sneade, Joseph O. Ogar, Satoshi Yamashita, Hiroki Akutsu, Yasuhiro Nakazawa, Takashi Yamamoto, Lee Martin
{"title":"2D Quantum Spin-Liquid Candidate Including a Chiral Anion: κ-(BEDT-TTF)2[BR/S(salicylate)2]","authors":"Toby J. Blundell, Kathryn Sneade, Joseph O. Ogar, Satoshi Yamashita, Hiroki Akutsu, Yasuhiro Nakazawa, Takashi Yamamoto, Lee Martin","doi":"10.1021/jacs.4c12386","DOIUrl":null,"url":null,"abstract":"The quantum spin-liquid state was first theorized by Anderson 50 years ago and the challenge remains to realize a quantum spin-liquid material. A handful of two-dimensional molecular candidates have attracted huge attention over the past 30 years owing to their triangular lattice possessing <i>S</i> = 1/2 spin systems. We present a new quantum spin-liquid candidate in 2D Mott insulator κ-(BEDT-TTF)<sub>2</sub>[B<sub><i>R</i>/<i>S</i></sub>(salicylate)]<sub>2</sub>. The structure has a double-width anion layer giving it a strong 2D character. The spiroborate anion is chiral and the salt is an inversion twin, having no inversion symmetry center and crystallizing in space group <i>P</i>2<sub>1</sub>. This offers the possibility of novel behavior owing to the low symmetry not previously seen in molecular spin-liquid candidates. The peak height of the 6K anomaly of κ-(BEDT-TTF)<sub>2</sub>[B<sub><i>R</i>/<i>S</i></sub>(salicylate)<sub>2</sub>] is 2 or 3 times larger than that of κ-(BEDT-TTF)<sub>2</sub>Cu<sub>2</sub>(CN)<sub>3</sub> and EtMe<sub>3</sub>Sb[Pd(dmit)<sub>2</sub>]<sub>2</sub>. The structure presents many opportunities for crystal engineering through atom-by-atom changes to the ligands on the spiroborate anion to produce a family of materials which lie in and around the QSL region of the phase diagram for these salts. This gives the prospect of an experimental playground to deepen understanding of the QSL state. Electrical resistivity, SQUID magnetometry, band calculations, heat capacity, Infrared and Raman spectroscopy are reported for κ-(BEDT-TTF)<sub>2</sub>[B<sub><i>R</i>/<i>S</i></sub>(salicylate)<sub>2</sub>].","PeriodicalId":49,"journal":{"name":"Journal of the American Chemical Society","volume":"11 1","pages":""},"PeriodicalIF":14.4000,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Chemical Society","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/jacs.4c12386","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

The quantum spin-liquid state was first theorized by Anderson 50 years ago and the challenge remains to realize a quantum spin-liquid material. A handful of two-dimensional molecular candidates have attracted huge attention over the past 30 years owing to their triangular lattice possessing S = 1/2 spin systems. We present a new quantum spin-liquid candidate in 2D Mott insulator κ-(BEDT-TTF)2[BR/S(salicylate)]2. The structure has a double-width anion layer giving it a strong 2D character. The spiroborate anion is chiral and the salt is an inversion twin, having no inversion symmetry center and crystallizing in space group P21. This offers the possibility of novel behavior owing to the low symmetry not previously seen in molecular spin-liquid candidates. The peak height of the 6K anomaly of κ-(BEDT-TTF)2[BR/S(salicylate)2] is 2 or 3 times larger than that of κ-(BEDT-TTF)2Cu2(CN)3 and EtMe3Sb[Pd(dmit)2]2. The structure presents many opportunities for crystal engineering through atom-by-atom changes to the ligands on the spiroborate anion to produce a family of materials which lie in and around the QSL region of the phase diagram for these salts. This gives the prospect of an experimental playground to deepen understanding of the QSL state. Electrical resistivity, SQUID magnetometry, band calculations, heat capacity, Infrared and Raman spectroscopy are reported for κ-(BEDT-TTF)2[BR/S(salicylate)2].

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
求助全文
约1分钟内获得全文 去求助
来源期刊
CiteScore
24.40
自引率
6.00%
发文量
2398
审稿时长
1.6 months
期刊介绍: The flagship journal of the American Chemical Society, known as the Journal of the American Chemical Society (JACS), has been a prestigious publication since its establishment in 1879. It holds a preeminent position in the field of chemistry and related interdisciplinary sciences. JACS is committed to disseminating cutting-edge research papers, covering a wide range of topics, and encompasses approximately 19,000 pages of Articles, Communications, and Perspectives annually. With a weekly publication frequency, JACS plays a vital role in advancing the field of chemistry by providing essential research.
期刊最新文献
Photoredox/Pyridine N-Oxide Catalyzed Carbohydroxylation and Aminohydroxylation of α-Olefins Chemical Carbonylation of Arginine in Peptides and Proteins Machine Learning Potential for Copper Hydride Clusters: A Neutron Diffraction-Independent Approach for Locating Hydrogen Positions Direct Electrooxidation of Ethylene to Ethylene Glycol over 90% Faradaic Efficiency Enabled by Cl– Modification of the Pd Surface Light-Induced Conformational Heterogeneity Induces Positive Photoswitching in Photoconvertible Fluorescent Proteins of the EosFP Family
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1