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首页> 外文期刊>Synthetic Metals >Magnetic properties of anion-radical salt [Fe~(II)(dipy)_3](TCNQ)_4·(CH_3)_2CO
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Magnetic properties of anion-radical salt [Fe~(II)(dipy)_3](TCNQ)_4·(CH_3)_2CO

机译:阴离子自由基盐[Fe〜(II)(dipy)_3](TCNQ)_4·(CH_3)_2CO的磁性

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摘要

Magnetic properties of anion-radical TCNQ salt [Fe(dipy)_3](TCNQ)_4·(CH_3)_2CO have been investigated (dipy is 2,2'-dipyridil). X-ray diffraction data allow presence of two types of TCNQ stacks: tetramer-ized (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.
机译:研究了阴离子自由基TCNQ盐[Fe(dipy)_3](TCNQ)_4·(CH_3)_2CO的磁性(dipy为2,2'-联吡啶。)。 X射线衍射数据允许存在两种类型的TCNQ堆栈:四聚体化(抗磁性)和部分二聚化(顺磁性)。由于使用了Mossbauer光谱,铁阳离子在低旋态下显示为二价离子。磁化率温度依赖性由Bonner-Fischer模型描述,具有附加的弱杂质顺磁性。磁化率曲线与ESR光谱具有良好的定性一致性。

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