Magnetic susceptibility, field dependence

Clx T studied versus JfkT magnetism fitted to series-expansion result (for details see original literature) susceptibility field-dependent (H = 10kOe) for J/kT>0.S ... 

The infrared spectra suggest bidentate dithiocarbamate coordination, the magnetic susceptibility is markedly field-dependent. Although the compound is monomeric in CHCI3, a molar conductance in nitromethane is found, which increases sharply on dilution, attributed to a weak electrolytic character. Accordingly, the authors formulate this compound as [Nb2(Et2r/tc)sBr2]Br. 

Ishikawa etal. proposed an approach for the determination of the ligand-field (LF) parameters of a set of isostructural lanthanide complexes. This method consists of a simultaneous fit of the temperature dependence of magnetic susceptibilities and NMR spectra for the whole isostructural series [18]. In order to avoid over-parametrization a key restriction is imposed each parameter is expressed as a linear function of the number of f electrons, n ... 

Temperature-Dependent Magnetic Susceptibility and Field-Dependent Magnetization... 

Fig. 7 Temperature dependence of the static magnetic susceptibility of (a) (EDT-TTFBr2)2 FeBr4 (b) (EDO-TTFBr2)2FeCl4 (c) (EDO-TTFBr2)2FeBr4 measured at an external field of B = 1 T after the core diamagnetic contributions are subtracted...

Fe(isoxazole)6]2+ and [Fe(isoxazole)4(H20)2]2+, together with four non-co-ordinated tetrafluoroborate anions (Fig. 15). The structural details for the low-field trans [Fe(isoxazole)4(H20)2]2+ are consistent with a high-spin Fe(II) chromophore (average Fe-O=2.09 A and Fe-N=2.19 A), whereas those for [Fe(isoxazole)6]2+ show a marked temperature dependence (average Fe-N=1.98 A at 115 K and 2.17 A at 231 K) related to the reversible low-spin to high-spin transition. From magnetic susceptibility measurements, the transition temperature has been found to be T1/2=137 K. 

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