Magnetic properties of anion-radical salt [Fe-II(dipy)(3)](TCNQ)(4)center dot(CH3)(2)CO

作者：Vasylets G^*; Starodub V A; Feher A; Kajnakova M; Zboril R; Tucek J; Metz H; Potocnak I

来源：Synthetic Metals, 2014, 194: 7-10.

DOI：10.1016/j.synthmet.2014.04.011

• Tetracyanoquinodimethane
• Mossbauer spectroscopy
• Magnetic susceptibility

Magnetic properties of anion-radical TCNQ salt [Fe(dipy)(3)](TCNQ)(4)center dot(CH3)(2)CO have been investigated (dipy is 2,2'-dipyridil). X-ray diffraction data allow presence of two types of TCNQ stacks: tetramerized (diamagnetic) and partly dimerized (paramagnetic). Due to Mossbauer spectroscopy data iron cation appears as two-valent ion in low-spin state. Magnetic susceptibility temperature dependence is described by Bonner Fischer model with additional weak impurity paramagnetism. Susceptibility curve is in good qualitative agreement with ESR spectra.

• 出版日期2014-8