scholarly journals Crossover from Antiferromagnetic to Ferromagnetic Exchange Coupling in a New Family of Bis-(μ-phenoxido)dicopper(II) Complexes: A Comprehensive Magneto–Structural Correlation by Experimental and Theoretical Study

ACS Omega ◽  
2019 ◽  
Vol 4 (6) ◽  
pp. 10558-10570 ◽  
Author(s):  
Dhrubajyoti Mondal ◽  
Mithun Chandra Majee ◽  
Kisholoy Bhattacharya ◽  
Jérôme Long ◽  
Joulia Larionova ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Theoretical Study ◽  
New Family ◽  
Structural Correlation ◽  
Ferromagnetic Exchange

Theoretical study of the exchange coupling interactions in a polyoxometalate Fe9W12 complex

Polyhedron ◽  
2007 ◽  
Vol 26 (9-11) ◽  
pp. 2161-2164 ◽  
Author(s):  
Eliseo Ruiz ◽  
Joan Cano ◽  
Santiago Alvarez ◽  
Pierre Gouzerh ◽  
Michel Verdaguer
Keyword(s):  
Exchange Coupling ◽  
Theoretical Study

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°.

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.

Magnetism of Spin System with Alternating Strong and Weak Exchange Coupling. I. Theoretical Study

1981 ◽  
Vol 50 (11) ◽  
pp. 3583-3587 ◽  
Author(s):  
Shigeru Takatori ◽  
Naoshi Suzuki ◽  
Kazuko Motizuki
Keyword(s):  
Spin System ◽  
Exchange Coupling ◽  
Theoretical Study ◽  
Weak Exchange

Ferromagnetic exchange coupling in a new bis(μ-chloro)-bridged copper(II) Schiff base complex: Synthesis, structure, magnetic properties and catalytic oxidation of cycloalkanes

Polyhedron ◽  
2009 ◽  
Vol 28 (4) ◽  
pp. 695-702 ◽  
Author(s):  
Santarupa Thakurta ◽  
Partha Roy ◽  
Georgina Rosair ◽  
Carlos J. Gómez-García ◽  
Eugenio Garribba ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Schiff Base ◽  
Catalytic Oxidation ◽  
Exchange Coupling ◽  
Schiff Base Complex ◽  
Base Complex ◽  
Ferromagnetic Exchange
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