On the path to bulk FeH2: Synthesis and magnetic properties of amorphous iron (II) hydride

On the path to bulk FeH2: Synthesis and magnetic properties of amorphous iron (II) hydride
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DOI:
10.1016/j.jallcom.2013.12.099
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发表时间:
2014-03
影响因子:
6.2
通讯作者:
L. Morris;M. Trudeau;M. Lees;J. Hanna;D. Antonelli
L. Morris;M. Trudeau;M. Lees;J. Hanna;D. Antonelli
中科院分区:
材料科学2区
文献类型:
--
作者:
L. Morris;M. Trudeau;M. Lees;J. Hanna;D. Antonelli

文献摘要

相似文献

一种接近 FeH2 成分的无定形 Fe(II) 氢化物材料 (FeH2−xRx(Et2O)y,其中 R = 异丙酮基) 已被分离为固态散装粉末。这是在温和的反应条件下通过双(异三叉基)铁 (II) 在甲苯和氢气中在 100 bar 和 298 K 下反应来实现的,得到 Fe(0) 和氢化铁 (II) 的 1:5 混合相无定形材料。这是一个重要的进步,因为 FeH2 从未以批量形式合成过。该材料表现出铁磁行为,10 K 时每公式单位的磁化率为 1.25 个玻尔磁子。
An amorphous Fe(II) hydride material approximating FeH2in composition (FeH2−xRx(Et2O)ywhere R = mesityl) has been isolated as a bulk powder in the solid state. This was accomplished under moderate reaction conditions by the reaction of bis(mesityl) iron(II) in toluene and hydrogen gas at 100 bar and 298 K to give a 1:5 mixed phase amorphous material of Fe(0) and the iron (II) hydride. This represents an important advance because FeH2has never been synthesised in bulk form. The material shows ferromagnetic behaviour with a magnetic susceptibility of 1.25 Bohr magnetons per formula unit at 10 K.