Synthesis and physical properties of meso-tetraferrocenylporphyrin, the copper complex, and the corresponding mixed-valence oxidation products

1977 ◽  
Vol 16 (12) ◽  
pp. 3079-3089 ◽  
Author(s):  
Ronald G. Wollmann ◽  
David N. Hendrickson
Keyword(s):  
Physical Properties ◽  
Copper Complex ◽  
Mixed Valence ◽  
Oxidation Products

Mixed-valence Fe(III)Fe(IV) dimers. Preparation and physical properties of oxidation products of oxo-bridged binuclear iron(III) complexes

1995 ◽  
Vol 238 (1-2) ◽  
pp. 139-147 ◽  
Author(s):  
V.K. Voronkova ◽  
J. Mrozinski ◽  
M.A. Yampol'skaya ◽  
Yu.V. Yablokov ◽  
N.S. Evtushenko ◽  
...  
Keyword(s):  
Physical Properties ◽  
Mixed Valence ◽  
Oxidation Products ◽  
Binuclear Iron

Synthesis, structure, and magnetic properties of dicopper and tricobalt complexes based on N-(2-pyridylmethyl)iminodiethanol

2015 ◽  
Vol 2 (8) ◽  
pp. 763-770 ◽  
Author(s):  
Jong Won Shin ◽  
Ah Rim Jeong ◽  
Shinya Hayami ◽  
Dohyun Moon ◽  
Kil Sik Min
Keyword(s):  
Magnetic Properties ◽  
Copper Complex ◽  
Mixed Valence ◽  
Molecular Magnetism ◽  
Dinuclear Copper

A novel unsymmetrical dinuclear copper complex [Cu(H2pmide)(NO3)Cu(Hpmide)](NO3)2 (1) and a mixed-valence trinuclear cobalt compound [(pmide)2Co3(CH3CO2)2(NCS)2]·4CH3OH (2) have been prepared and characterized using structure and molecular magnetism.

scholarly journals Effect of Transition Metal Substitution on the Charge-Transfer Phase Transition and Ferromagnetism of Dithiooxalato-Bridged Hetero Metal Complexes, (n-C3H7)4N[FeII1−xMnIIxFeIII(dto)3]

Crystals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 446 ◽  
Author(s):  
Masaya Enomoto ◽  
Hiromichi Ida ◽  
Atsushi Okazawa ◽  
Norimichi Kojima
Keyword(s):  
Phase Transition ◽  
Charge Transfer ◽  
Physical Properties ◽  
Mixed Valence ◽  
Ferromagnetic Phase ◽  
Ferromagnetic Transition ◽  
Transfer Phase ◽  
Spin Configuration ◽  
Ion Radius ◽  
The Difference

The dithiooxalato-bridged iron mixed-valence complex (n-C3H7)4N[FeIIFeIII(dto)3] (dto = dithiooxalato) undergoes a novel charge-transfer phase transition (CTPT) accompanied by electron transfer between adjacent FeII and FeIII sites. The CTPT influences the ferromagnetic transition temperature according to the change of spin configuration on the iron sites. To reveal the mechanism of the CTPT, we have synthesized the series of metal-substituted complexes (n-C3H7)4N[FeII1-xMnIIxFeIII(dto)3] (x = 0–1) and investigated their physical properties by means of magnetic susceptibility and dielectric constant measurements. With increasing MnII concentration, x, MnII-substituted complexes show the disappearance of CTPT above x = 0.04, while the ferromagnetic phase remains in the whole range of x. These results are quite different from the physical properties of the ZnII-substituted complex, (n-C3H7)4N[FeII1-xZnIIxFeIII(dto)3], which is attributed to the difference of ion radius as well as the spin states of MnII and ZnII.

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