• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

观察三螺旋镧系金属螺旋配合物中的缓慢磁弛豫。

Observation of slow magnetic relaxation in triple-stranded lanthanide helicates.

机构信息

State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.

出版信息

Dalton Trans. 2011 Aug 28;40(32):8213-7. doi: 10.1039/c1dt10729a. Epub 2011 Jul 8.

DOI:10.1039/c1dt10729a
PMID:21743912
Abstract

Two dinuclear triple-stranded helicates Ln(2)L(3) (Ln = Dy and Tb) obtained via self-assembly from the ligand HL (2,6-diformyl-4-methylphenol di(benzoylhydrazone)) and lanthanide perchlorate have been synthesized and characterized. The crystal structural analysis demonstrates that three ligand strands wrap around a pseudo-threefold axis defined by the two metal ions, leading to a 'meso'-relation between the right- (Δ) and left-hand (Λ) configurations of Ln(2)L(3) in the crystal. Each Ln(III) ion is coordinated by nine donor atoms in a distorted tricapped trigonal-prismatic arrangement. Alternating current (ac) susceptibility measurements of Dy(2)L(3) reveal a frequency-dependent out-of-phase signal under a 700 Oe dc field, indicating the onset of the slow relaxation of magnetization with a roughly estimated activation energy of ∼5 K and τ(0) of 10(-7) s.

摘要

两个双核三螺旋螺旋体Ln(2)L(3)（Ln=Dy 和 Tb）通过配体 HL（2,6-二醛基-4-甲基苯酚二（苯甲酰腙））和镧系高氯酸盐的自组装得到合成并进行了表征。晶体结构分析表明，三条配体链围绕由两个金属离子定义的拟三重轴包裹，导致Ln(2)L(3)在晶体中的右旋（Δ）和左旋（Λ）构型之间存在“介观”关系。每个 Ln(III)离子由九个供体原子在扭曲的三帽三角棱柱配位排列中配位。Dy(2)L(3)的交流（ac）磁化率测量在 700 Oe 的直流磁场下显示出频率相关的反相信号，表明磁矩的缓慢弛豫开始，估计活化能约为 5 K，τ(0)为 10(-7) s。

相似文献

1
Observation of slow magnetic relaxation in triple-stranded lanthanide helicates.观察三螺旋镧系金属螺旋配合物中的缓慢磁弛豫。
Dalton Trans. 2011 Aug 28;40(32):8213-7. doi: 10.1039/c1dt10729a. Epub 2011 Jul 8.
2
Synthesis, structure, luminescent, and magnetic properties of carbonato-bridged Zn(II)2Ln(III)2 complexes [(μ4-CO3)2{Zn(II)L(n)Ln(III)(NO3)}2] (Ln(III) = Gd(III), Tb(III), Dy(III); L(1) = N,N'-bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato, L(2) = N,N'-bis(3-ethoxy-2-oxybenzylidene)-1,3-propanediaminato).碳酸根桥联的 Zn(II)2Ln(III)2 配合物[(μ4-CO3)2{Zn(II)L(n)Ln(III)(NO3)}2]（Ln(III) = Gd(III)，Tb(III)，Dy(III)；L(1) = N,N'-双（3-甲氧基-2-氧基亚苄基）-1,3-丙二胺，L(2) = N,N'-双（3-乙氧基-2-氧基亚苄基）-1,3-丙二胺）的合成、结构、发光和磁性性质。
Inorg Chem. 2013 Nov 4;52(21):12828-41. doi: 10.1021/ic4022273. Epub 2013 Oct 23.
3
Carbonato-bridged Ni(II)2Ln(III)2 (Ln(III) = Gd(III), Tb(III), Dy(III)) complexes generated by atmospheric CO2 fixation and their single-molecule-magnet behavior: [(μ4-CO3)2{Ni(II)(3-MeOsaltn)(MeOH or H2O)Ln(III)(NO3)}2]·solvent [3-MeOsaltn = N,N'-bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato].由大气 CO2 固定生成的桥连碳酸根的 Ni(II)2Ln(III)2（Ln(III) = Gd(III), Tb(III), Dy(III)）配合物及其单分子磁体行为：[(μ4-CO3)2{Ni(II)(3-MeOsaltn)(MeOH 或 H2O)Ln(III)(NO3)}2]·溶剂 [3-MeOsaltn = N,N'-双(3-甲氧基-2-氧基亚苄基)-1,3-丙二胺]。
Inorg Chem. 2013 Jun 17;52(12):7218-29. doi: 10.1021/ic4008312. Epub 2013 May 24.
4
Slow magnetic relaxation in lanthanide complexes with chelating nitronyl nitroxide radical.具有螯合硝酮自由基的镧系配合物中的缓慢磁弛豫。
Inorg Chem. 2010 Jun 7;49(11):4735-7. doi: 10.1021/ic100008g.
5
Tuning the self-assembly of lanthanide triple stranded heterobimetallic helicates by ligand design.通过配体设计调控镧系元素三链异双金属螺旋配合物的自组装
Dalton Trans. 2008 Feb 28(8):1027-36. doi: 10.1039/b715672c. Epub 2007 Dec 4.
6
Asymmetric Dinuclear Lanthanide(III) Complexes from the Use of a Ligand Derived from 2-Acetylpyridine and Picolinoylhydrazide: Synthetic, Structural and Magnetic Studies.手性双核镧系（III）配合物的合成、结构和磁性研究：来自 2-乙酰吡啶和吡啶甲酰肼的配体的应用。
Molecules. 2020 Jul 10;25(14):3153. doi: 10.3390/molecules25143153.
7
Steric hindrances create a discrete linear Dy4 complex exhibiting SMM behaviour.空间位阻导致离散线性 Dy4 配合物表现出 SMM 行为。
Dalton Trans. 2012 Mar 21;41(11):3248-52. doi: 10.1039/c2dt11539e. Epub 2012 Jan 30.
8
Syntheses, structures, and magnetic properties of diphenoxo-bridged Cu(II)Ln(III) and Ni(II)(low-spin)Ln(III) compounds derived from a compartmental ligand (Ln = Ce-Yb).桥联双酚氧的 Cu(II)Ln(III)和 Ni(II)(低自旋)Ln(III)化合物的合成、结构和磁性，该化合物来源于隔室配体（Ln = Ce-Yb）。
Inorg Chem. 2010 Oct 4;49(19):9012-25. doi: 10.1021/ic101445n.
9
Lanthanide complexes of chiral 3 + 3 macrocycles derived from (1R,2R)-1,2-diaminocyclohexane and 2,6-diformyl-4-methylphenol.由（1R，2R）-1,2-二氨基环己烷和2,6-二甲基-4-甲基苯酚衍生的手性3 + 3大环镧系元素配合物。
Dalton Trans. 2006 Jan 14(2):381-8. doi: 10.1039/b502863a. Epub 2005 Oct 27.
10
Mononuclear lanthanide single molecule magnets based on the polyoxometalates [Ln(W5O18)2]9- and [Ln(beta2-SiW11O39)2]13- (Ln(III) = Tb, Dy, Ho, Er, Tm, and Yb).基于多金属氧酸盐[Ln(W5O18)2]9-和[Ln(β2-SiW11O39)2]13-（Ln(III)=Tb、Dy、Ho、Er、Tm和Yb）的单核镧系单分子磁体。
Inorg Chem. 2009 Apr 20;48(8):3467-79. doi: 10.1021/ic801630z.

引用本文的文献

1
Self-Assembly of Triple-Stranded Lanthanide Molecular Quasi-Lantern Containing 2,2'-Bipyridine Receptor: Luminescence Sensing and Magnetic Property.含2,2'-联吡啶受体的三链镧系分子准灯笼的自组装：发光传感与磁性
ACS Omega. 2023 Jun 29;8(27):24477-24484. doi: 10.1021/acsomega.3c02419. eCollection 2023 Jul 11.
2
Study of the Counter Cation Effects on the Supramolecular Structure and Electronic Properties of a Dianionic Oxamate-Based {Ni} Helicate.研究抗衡离子对基于乙二氧双乙酸根的二价镍螺旋结构和电子性质的超分子结构的影响。
Molecules. 2023 Feb 23;28(5):2086. doi: 10.3390/molecules28052086.
3
Incorporating polyoxometalates and organic ligands to pursue 3d-4f heterometallic clusters: a series of {CrLn} clusters stabilized by phthalic acid and [SiWO].
结合多金属氧酸盐和有机配体以合成3d-4f异金属簇：一系列由邻苯二甲酸和[SiWO]稳定的{CrLn}簇
RSC Adv. 2019 May 1;9(24):13543-13549. doi: 10.1039/c9ra01731c. eCollection 2019 Apr 30.