Transition Metal Single-Molecule Magnets: A {Mn31} Nanosized Cluster with a Large Energy Barrier of ∼60 K and Magnetic Hysteresis at ∼5 K

被引：76

作者：

Abbasi, Parisa ^{[1
]}

Quinn, Kevan ^{[1
]}

Alexandropoulos, Dimitris I. ^{[1
]}

Damjanovic, Marko ^{[2
]}

Wernsdorfer, Wolfgang ^{[2
,3
,4
]}

Escuer, Albert ^{[5
,6
]}

Mayans, Julia ^{[5
,6
]}

Pilkington, Melanie ^{[1
]}

Stamatatos, Theocharis C. ^{[1
]}

机构：

[1] Brock Univ, Dept Chem, 1812 Sir Isaac Brock Way, St Catharines, ON L2S 3A1, Canada

[2] Karlsruhe Inst Technol, Inst Nanotechnol, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany

[3] CNRS, Inst Neel, BP 166,25 Ave Martyrs, F-38042 Grenoble 9, France

[4] Karlsruhe Inst Technol, Phys Inst, Wolfgang Gaede Str 1, D-76131 Karlsruhe, Germany

[5] Univ Barcelona, Dept Quim Inorgan & Organ, Seccio Inorgan, Marti i Franques 1-11, E-08028 Barcelona, Spain

[6] Univ Barcelona, Inst Nanociencia & Nanotecnol IN2UB, Marti i Franques 1-11, E-08028 Barcelona, Spain

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2017年 / 139卷 / 44期

基金：

加拿大自然科学与工程研究理事会;

关键词：

HIGH-SPIN MOLECULES; ANISOTROPY BARRIER; GROUND-STATE; SYMMETRY; COMPLEX; QUANTUM;

D O I：

10.1021/jacs.7b10130

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The first {Mn-31} cluster (1) has been prepared from carboxylate ions and the chelating/bridging ligand alpha-methyl-2-pyridine-methanol. Compound 1 possesses a unique nanosized structural topology with one of the largest energy barriers reported to-date for high-nuclearity 3d-metal clusters. Single-crystal magnetic hysteresis studies reveal the presence of hysteresis loops below 5 K, one of the highest temperatures below which molecular hysteresis has been observed for 3d-based SMMs.

引用

页码：15644 / 15647

页数：4

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