A triangular Dy3 single-molecule toroic with high inversion energy barrier: magnetic properties and multiple-step assembly mechanism†,Inorganic Chemistry Frontiers

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A triangular Dy3 single-molecule toroic with high inversion energy barrier: magnetic properties and multiple-step assembly mechanism†
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2018-11-14 00:00:00 , DOI: 10.1039/c8qi01069b
Zhong-Hong Zhu _{1,

2,

3,

4} , Xiong-Feng Ma _{1,

2,

3,

4} , Hai-Ling Wang _{1,

2,

3,

4} , Hua-Hong Zou _{1,

2,

3,

4} , Kai-Qiang Mo _{1,

2,

3,

4} , Yi-Quan Zhang _{4,

5,

6,

7,

8} , Qi-Zhen Yang _{1,

2,

3,

4} , Bo Li _{4,

9,

10,

11} , Fu-Pei Liang _{1,

2,

3,

4,

12}

Affiliation

In the present study, we designed and synthesized a triangular-shaped Dy₃ single-molecule toroic with an energy barrier of 130 K. The above Dy₃ cluster has the highest energy barrier among the reported triangular-shaped Ln₃ single-molecule toroics. For the first time, Electrospray Ionization Mass Spectrometry (ESI-MS) was used to study the gradual splitting of a trigonal lanthanide cluster, which provided a reference for studying the assembly mechanism. The time-dependent ESI-MS technique was used to track the changes of reaction species, and a multi-step assembly mechanism for Dy₃ clusters was proposed in combination with the fracture mechanism: [Dy(L)]⁺ → [Dy₂(L)₃]⁺ → [Dy₃(L)₄]⁺ → [Dy₃(L)₅]⁺/[Dy₃(L)₅]′⁺.

中文翻译：

具有高反转能垒的三角形Dy ₃单分子强磁化合物：磁性和多步组装机理†

在本研究中，我们设计并合成了一个能级为130 K的三角形Dy ₃单分子托洛基。上述Dy ₃簇在所报道的三角形Ln ₃单分子托洛基中具有最高的能垒。首次使用电喷雾电离质谱（ESI-MS）研究三角镧系元素簇的逐渐分裂，为研究组装机理提供了参考。利用时变ESI-MS技术跟踪反应物种的变化，结合断裂机理，提出了Dy ₃团簇的多步组装机理：[Dy（L）] ⁺ →[Dy ₂（ L）₃] ⁺ →[Dy ₃（L）₅ ] ⁺ →[Dy ₃（L）₅ ] ⁺ / [Dy ₃（L）₅ ]' ⁺。

更新日期：2018-11-14

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