Magnetic slow relaxation of Tb(III) complex with a nitronyl nitroxide involving a brominated-pyridyl substituent

2021 ◽  
Vol 1229 ◽  
pp. 129807
Author(s):  
Dan-Hua Shi ◽  
Wen Wang ◽  
Shu-Ping Wang ◽  
Zhong-Yi Liu
Keyword(s):  
Slow Relaxation ◽  
Nitronyl Nitroxide

Slow relaxation of magnetization in unprecedented Cu–Ln-Rad hetero-tri-spin chains constructed from multidentate nitronyl nitroxide

2019 ◽  
Vol 7 (29) ◽  
pp. 9057-9064 ◽  
Author(s):  
Juan Sun ◽  
Zan Sun ◽  
Kang Wang ◽  
Lu Xi ◽  
Yue Ma ◽  
...  
Keyword(s):  
Magnetic Relaxation ◽  
Spin Chains ◽  
Slow Relaxation ◽  
Nitronyl Nitroxide ◽  
Nitronyl Nitroxides ◽  
Slow Magnetic Relaxation

Unprecedented Cu–Ln heterometallic chains derived from poly-dentate nitronyl nitroxides are reported. A Tb complex shows slow magnetic relaxation, while a Dy derivative displays interesting two-step relaxations of magnetization.

Magnetic Slow Relaxation in Cyclic TbIII-Nitronyl Nitroxide Radical Complexes

2009 ◽  
Vol 2009 (29-30) ◽  
pp. 4498-4502 ◽  
Author(s):  
Haixia Tian ◽  
Ruina Liu ◽  
Xiaoling Wang ◽  
Peipei Yang ◽  
Zuoxi Li ◽  
...  
Keyword(s):  
Nitroxide Radical ◽  
Slow Relaxation ◽  
Nitronyl Nitroxide ◽  
Nitronyl Nitroxide Radical

Slow relaxation of magnetization in lanthanide–biradical complexes based on a functionalized nitronyl nitroxide biradical

2020 ◽  
Vol 49 (47) ◽  
pp. 17414-17420
Author(s):  
Juan Sun ◽  
Qi Wu ◽  
Jiao Lu ◽  
Pei Jing ◽  
Yeshuang Du ◽  
...  
Keyword(s):  
Slow Relaxation ◽  
Nitronyl Nitroxide

Unique Ln–biradical complexes involving a functionalized nitronyl nitroxide biradical have been achieved. Ferromagnetic Ln(iii)–NO interactions are dominant in these compounds and the Dy complex exhibits slow relaxation of magnetization.

Magnetic slow relaxation of pseudo-binuclear Ln(III)-nitronyl nitroxide radical complexes involving non-covalent O⋯O interactions

2020 ◽  
Vol 1207 ◽  
pp. 127735
Author(s):  
Jian-Min Wang ◽  
Long-Mei Wen ◽  
Fang-Fang Liu ◽  
Shu-Ping Wang ◽  
Jian-Jun Zhang ◽  
...  
Keyword(s):  
Nitroxide Radical ◽  
Slow Relaxation ◽  
Nitronyl Nitroxide ◽  
Nitronyl Nitroxide Radical

PHASE TRANSFORMATION AND SLOW RELAXATION IN FLUOSILICATES

1976 ◽  
Vol 37 (C6) ◽  
pp. C6-481-C6-481
Author(s):  
J. CHAPPERT ◽  
G. JEHANNO ◽  
F. VARRET
Keyword(s):  
Phase Transformation ◽  
Slow Relaxation

Ferromagnetic Chain Based on Verdazyl-Nitroxide Diradical

2020 ◽  
Author(s):  
Evgeny Tretyakov ◽  
Svetlana Zhivetyeva ◽  
Pavel Petunin ◽  
Dmitry Gorbunov ◽  
Nina Gritsan ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Ferromagnetic Coupling ◽  
Nitronyl Nitroxide ◽  
Triplet Ground State ◽  
One Dimensional ◽  
Cross Coupling Reaction ◽  
Palladium Catalyzed ◽  
Ferromagnetic Chain ◽  
High Yields

<p>Verdazyl-nitroxide diradicals were synthesized using the palladium-catalyzed cross-coupling reaction of the corresponding iodoverdazyls with a nitronyl nitroxide-2-ide gold(I) complex with high yields (up to 82%). The synthesized diradicals were found to be highly thermally stable and have a singlet (D<i>E</i><sub>ST</sub> » -64 cm<sup>–1</sup>) or triplet ground state (D<i>E</i><sub>ST</sub> ³ 25 and 100 cm<sup>–1</sup>), depending on which canonical hydrocarbon diradical type they belong to. Upon crystallization, triplet diradicals form unique one-dimensional (1D) spin <i>S</i> = 1 chains of organic diradicals with intrachain ferromagnetic coupling of <i>J</i>′/<i>k</i><sub>B</sub> from 3 to 6 K.</p>

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