Effect of deprotonation on the magnetic exchange coupling constant of fluorene-based verdazyl diradical: A computational study

2017 ◽  
Vol 118 (11) ◽  
pp. e25543 ◽  
Author(s):  
Suranjan Shil
Keyword(s):  
Exchange Coupling ◽  
Computational Study ◽  
Coupling Constant ◽  
Magnetic Exchange ◽  
Exchange Coupling Constant ◽  
Magnetic Exchange Coupling

scholarly journals Coordination chemistry and photoswitching of dinuclear macrocyclic cadmium-, nickel-, and zinc complexes containing azobenzene carboxylato co-ligands

2019 ◽  
Vol 15 ◽  
pp. 840-851
Author(s):  
Jennifer Klose ◽  
Tobias Severin ◽  
Peter Hahn ◽  
Alexander Jeremies ◽  
Jens Bergmann ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Crystal Structure Analysis ◽  
Mixed Ligand ◽  
Ionization Mass ◽  
Coupling Constant ◽  
Magnetic Exchange ◽  
X Ray ◽  
Magnetic Exchange Coupling ◽  
Ferromagnetic Exchange ◽  
Single Crystal Structure Analysis

The synthesis of mixed-ligand complexes of the type [M2L(μ-L')]+, where L represents a 24-membered macrocyclic hexaaza-dithiophenolate ligand, L' is an azobenzene carboxylate co-ligand, and M = Cd(II), Ni(II) or Zn(II), is reported. A series of new complexes were synthesized, namely [M2L(μ-L')]+ (L' = azo-H, M = Cd (1), Ni (2); L' = azo-OH, M = Zn (3), Ni (4); L' = azo-NMe2, M = Zn (5), Cd (6), Ni (7); L' = azo-CO2Me, M = Cd (8), Ni (9)), and characterized by elemental analysis, electrospray ionization mass spectrometry (ESIMS), IR, UV–vis and NMR spectroscopy (for diamagnetic Zn and Cd complexes) and X-ray single crystal structure analysis. The crystal structures of 3' and 5–8 display an isostructural series of compounds with bridging azobenzene carboxylates in the trans form. The paramagnetic Ni complexes 2, 4 and 7 reveal a weak ferromagnetic exchange interaction with magnetic exchange coupling constant values between 21 and 23 cm−1 (H = −2JS1S2). Irradiation of 1 with λ = 365 nm reveals a photoisomerization of the co-ligand from the trans to the cis form.

A novel and facile route to in-situ formation of composites with dual coupling interactions for considerable millimeter-wave absorption performance

2021 ◽  
Author(s):  
Chuyang Liu ◽  
Tao Jiang ◽  
Tian Gao ◽  
Guangxian Xia ◽  
Yufan Cao ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Exchange Coupling ◽  
Ferromagnetic Coupling ◽  
Soft Magnetic ◽  
Magnetic Exchange ◽  
Magnetic Exchange Coupling ◽  
Absorption Performance ◽  
In Situ Formation ◽  
Facile Route

It is well known that both hard/soft magnetic exchange-coupling and ferroelectric-ferromagnetic coupling could facilitate the microwave absorption behavior. Herein, we propose the BaZrxFe12-xO19/Fe3O4/BaZrO3 composites to integrate the advantages of the...

scholarly journals Transferrable property relationships between magnetic exchange coupling and molecular conductance

2020 ◽  
Vol 11 (42) ◽  
pp. 11425-11434
Author(s):  
Martin L. Kirk ◽  
Ranjana Dangi ◽  
Diana Habel-Rodriguez ◽  
Jing Yang ◽  
David A. Shultz ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Semiquinone Radical ◽  
Magnetic Exchange ◽  
Magnetic Exchange Coupling ◽  
Coupling Parameters ◽  
Molecular Conductance

Calculated conductance through Aun–S–Bridge–S–Aun constructs are compared to experimental magnetic exchange coupling parameters in TpCum,MeZn(SQ–Bridge–NN) complexes, where SQ = semiquinone radical and NN = nitronylnitroxide radical.

Magnetic exchange coupling in tetranuclear copper clusters of the type [Cu4(μ4O)Cl6−nBrnL4]

2001 ◽  
Vol 344 (3-4) ◽  
pp. 305-309 ◽  
Author(s):  
Roman Boča ◽  
L'ubor Dlháň ◽  
Darina Makáňová ◽  
Jerzi Mrozinski ◽  
Gregor Ondrejovič ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Magnetic Exchange ◽  
Copper Clusters ◽  
Magnetic Exchange Coupling

scholarly journals Magnetic exchange-coupling effects in asymmetric trilayer structures of MBE-grown Co/Cr/Fe

1996 ◽  
Vol 53 (17) ◽  
pp. 11613-11620 ◽  
Author(s):  
Katharina Theis-Bröhl ◽  
Rainer Scheidt ◽  
Thomas Zeidler ◽  
Frank Schreiber ◽  
Hartmut Zabel ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Coupling Effects ◽  
Magnetic Exchange ◽  
Magnetic Exchange Coupling

Magnetostructural relationship for μ2-phenoxido bridged ferric dimers

2017 ◽  
Vol 46 (13) ◽  
pp. 4317-4324 ◽  
Author(s):  
Fei Yu ◽  
Zi-Heng Cao ◽  
Jing-Yuan Ge ◽  
Yi-Chen Sun ◽  
Zhong-Wen Ouyang ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Exchange Coupling ◽  
Crossover Point ◽  
Magnetic Exchange ◽  
Structural Correlation ◽  
Magnetic Exchange Coupling ◽  
Epr Measurements

The magneto-structural correlation between μ2-phenoxido bridged iron(iii) complexes are studied by structural analyses, magnetic, HF-EPR measurements, and DFT calculations. The magnetic exchange coupling is governed by the Fe–O–Fe angle and the crossover point from AF to F interactions is θ at 97.83°.

Heat-activated magnetic exchange coupling across Ge barriers and Ge/Si heterostructures

1995 ◽  
Vol 51 (11) ◽  
pp. 7303-7306 ◽  
Author(s):  
B. Briner ◽  
U. Ramsperger ◽  
M. Landolt
Keyword(s):  
Exchange Coupling ◽  
Magnetic Exchange ◽  
Magnetic Exchange Coupling
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