Significant Enhancement of Energy Barriers in Dinuclear Dysprosium Single-Molecule Magnets Through Electron-Withdrawing Effects

2013 ◽  
Vol 135 (36) ◽  
pp. 13242-13245 ◽  
Author(s):  
Fatemah Habib ◽  
Gabriel Brunet ◽  
Veacheslav Vieru ◽  
Ilia Korobkov ◽  
Liviu F. Chibotaru ◽  
...  
Keyword(s):  
Single Molecule ◽  
Significant Enhancement ◽  
Energy Barriers ◽  
Single Molecule Magnets

Enhanced energy barriers triggered by magnetic anisotropy modulation via tuning the functional groups on the bridging ligands in Dy2 single-molecule magnets

2018 ◽  
Vol 47 (42) ◽  
pp. 15197-15205 ◽  
Author(s):  
Yaru Qin ◽  
Yu Jing ◽  
Yu Ge ◽  
Wei Liu ◽  
Yahong Li ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Functional Groups ◽  
Single Molecule ◽  
Energy Barrier ◽  
Energy Barriers ◽  
Single Molecule Magnets ◽  
Bridging Ligands

Two dinuclear dysprosium complexes of 1 and 2 have been synthesized and both of them exhibit SMM behavior. The energy barrier is enhanced ca. 35 K by elaborately tuning the backbones of the ligands.

scholarly journals Single-molecule magnet properties of a monometallic dysprosium pentalene complex

2018 ◽  
Vol 54 (51) ◽  
pp. 7085-7088 ◽  
Author(s):  
Alexander F. R. Kilpatrick ◽  
Fu-Sheng Guo ◽  
Benjamin M. Day ◽  
Akseli Mansikkamäki ◽  
Richard A. Layfield ◽  
...  
Keyword(s):  
Single Molecule ◽  
Energy Barriers ◽  
Single Molecule Magnets ◽  
Single Molecule Magnet ◽  
Dysprosium Complex

The pentalene-ligated dysprosium complex [(η8-Pn†)Dy(Cp*)] (1Dy) (Pn† = [1,4-(iPr3Si)2C8H4]2−) and its magnetically dilute analogue are single-molecule magnets, with energy barriers of 245 cm−1.

scholarly journals Correlating blocking temperatures with relaxation mechanisms in monometallic single-molecule magnets with high energy barriers (Ueff > 600 K)

2019 ◽  
Vol 55 (49) ◽  
pp. 7025-7028 ◽  
Author(s):  
Marcus J. Giansiracusa ◽  
Andreas K. Kostopoulos ◽  
David Collison ◽  
Richard E. P. Winpenny ◽  
Nicholas F. Chilton
Keyword(s):  
Single Molecule ◽  
High Energy ◽  
Energy Barriers ◽  
Single Molecule Magnets

Correlating blocking temperatures with relaxation mechanisms in single-molecule magnets.

Tuneable energy barriers in tetrairon(III) single-molecule magnets

2004 ◽  
Vol 272-276 ◽  
pp. E749-E751 ◽  
Author(s):  
A Cornia ◽  
A.C Fabretti ◽  
P Garrisi ◽  
C Mortalò ◽  
D Bonacchi ◽  
...  
Keyword(s):  
Single Molecule ◽  
Energy Barriers ◽  
Single Molecule Magnets

Two C2v symmetry dysprosium(iii) single-molecule magnets with effective energy barriers over 600 K

2021 ◽  
Author(s):  
Xixi Meng ◽  
Mengmeng Wang ◽  
Xiaoshuang Gou ◽  
Wenlong Lan ◽  
Kexin Jia ◽  
...  
Keyword(s):  
Single Molecule ◽  
High Performance ◽  
Effective Energy ◽  
Magnetization Dynamics ◽  
Energy Barriers ◽  
Single Molecule Magnets

Two high-performance C2v symmetry dysprosium(iii) single-molecule magnets were synthesized. The mechanism of magnetization dynamics was studied in detail.

Efficient enhancement of magnetic anisotropy by optimizing the ligand-field in a typically tetranuclear dysprosium cluster

2015 ◽  
Vol 44 (17) ◽  
pp. 8150-8155 ◽  
Author(s):  
Jiang Liu ◽  
Yan-Cong Chen ◽  
Zhong-Xia Jiang ◽  
Jun-Liang Liu ◽  
Jian-Hua Jia ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Magnetic Anisotropy ◽  
Single Molecule ◽  
Thermal Energy ◽  
Ligand Field ◽  
Energy Barriers ◽  
Single Molecule Magnets ◽  
Applied External Magnetic Field

Two tetranuclear dysprosium single molecule magnets under a zero applied external magnetic field showing high thermal energy barriers which are among the highest within the reported tetranuclear lanthanide-based SMMs.

Assembling two Dy2 single-molecule magnets with different energy barriers via fine-tuning the geometries of DyIII sites

2020 ◽  
Vol 44 (47) ◽  
pp. 20634-20642
Author(s):  
Dawei Li ◽  
Man-Man Ding ◽  
Yu Ge ◽  
David Felipe Tello Yepes ◽  
Mingyuan Sun ◽  
...  
Keyword(s):  
Single Molecule ◽  
Energy Barrier ◽  
Fine Tuning ◽  
Energy Barriers ◽  
Single Molecule Magnets

Two Dy2 single-molecule magnets are prepared. The energy barrier of 2 is slightly enhanced by adjusting the geometries of DyIII centers.

scholarly journals Pursuit of Record Breaking Energy Barriers: A Study of Magnetic Axiality in Diamide Ligated DyIII Single-Molecule Magnets

2017 ◽  
Vol 139 (4) ◽  
pp. 1420-1423 ◽  
Author(s):  
Katie L. M. Harriman ◽  
Jonathan L. Brosmer ◽  
Liviu Ungur ◽  
Paula L. Diaconescu ◽  
Muralee Murugesu
Keyword(s):  
Single Molecule ◽  
Energy Barriers ◽  
Single Molecule Magnets ◽  
Breaking Energy

Relaxation dynamics in see-saw shaped Dy(iii) single-molecule magnets

2020 ◽  
Vol 7 (24) ◽  
pp. 4805-4812 ◽  
Author(s):  
Katie L. M. Harriman ◽  
Jesse Murillo ◽  
Elizaveta A. Suturina ◽  
Skye Fortier ◽  
Muralee Murugesu
Keyword(s):  
Single Molecule ◽  
Zero Field ◽  
Effective Energy ◽  
Relaxation Dynamics ◽  
Energy Barriers ◽  
Single Molecule Magnets

Unusual see-saw shaped Dy(iii) single-molecule magnets, [K(DME)n][LArDy(X)2] (LAr = {C6H4[(2,6-iPrC6H3)NC6H4]2}2−), X = Cl (1) and X = I (2) were synthesized and display high effective energy barriers (Ueff = 1278–1334 K) in zero field.

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