Origin of Ferromagnetic Coupling in a Dicyanamide-bridged One-dimensional Cu(II) Complex

2003 ◽  
Vol 32 (10) ◽  
pp. 902-903 ◽  
Author(s):  
Hui-Zhong Kou ◽  
Yi He
2020 ◽  
Author(s):  
Evgeny Tretyakov ◽  
Svetlana Zhivetyeva ◽  
Pavel Petunin ◽  
Dmitry Gorbunov ◽  
Nina Gritsan ◽  
...  

<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>


2021 ◽  
Vol 8 (1) ◽  
pp. 2
Author(s):  
Cai-Ming Liu ◽  
You Song

Ferromagnetic coupling exists in an uneven chain-like copper(II) complex with both end-on azido and syn-syn carboxylato bridges, (Cu3(L)2(N3)4(H2O)3)n (1, HL = 6-hydroxynicotinic acid). It is the first example of one-dimensional (1D) chain-like copper(II) coordination polymer showing both metamagnetic behavior and long-range magnetic ordering (Tc = 6.7 K), thanks to the interchain hydrogen bonds, which make a three-dimensional (3D) supramolecular array of the entire molecular structure and mediate the interchain antiferromagnetic interaction.


2008 ◽  
Vol 8 (11) ◽  
pp. 3908-3910 ◽  
Author(s):  
Hui-Zhong Kou ◽  
Yi-Tong Wang ◽  
Wang-Xi Luo ◽  
Qi-Wei Xie ◽  
Jun Tao ◽  
...  

2001 ◽  
Vol 40 (14) ◽  
pp. 3619-3622 ◽  
Author(s):  
Lei Zhang ◽  
Liang-Fu Tang ◽  
Zhi-Hong Wang ◽  
Miao Du ◽  
Miguel Julve ◽  
...  

2004 ◽  
Vol 357 (2) ◽  
pp. 376-380 ◽  
Author(s):  
Chen-Xi Zhang ◽  
Zhan-Quan Liu ◽  
Dai-Zheng Liao ◽  
Zong-Hui Jiang ◽  
Shi-Ping Yan

2003 ◽  
Vol 6 (3) ◽  
pp. 225-228 ◽  
Author(s):  
Licun Li ◽  
Daizheng Liao ◽  
Songyan Liu ◽  
Zonghui Jiang ◽  
Shiping Yan

2020 ◽  
Author(s):  
Evgeny Tretyakov ◽  
Svetlana Zhivetyeva ◽  
Pavel Petunin ◽  
Dmitry Gorbunov ◽  
Nina Gritsan ◽  
...  

<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>


1966 ◽  
Vol 25 ◽  
pp. 46-48 ◽  
Author(s):  
M. Lecar

“Dynamical mixing”, i.e. relaxation of a stellar phase space distribution through interaction with the mean gravitational field, is numerically investigated for a one-dimensional self-gravitating stellar gas. Qualitative results are presented in the form of a motion picture of the flow of phase points (representing homogeneous slabs of stars) in two-dimensional phase space.


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