Flux Synthesis of a Metal Carbide Hydride Using Anthracene As a Reactant
Flux Synthesis of a Metal Carbide Hydride Using Anthracene As a Reactant
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使用蒽作为反应物助熔合成金属碳化物氢化物
DOI：
10.1021/acs.inorgchem.0c01505
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发表时间：
2020
影响因子：
4.6
通讯作者：
Latturner, Susan E.
中科院分区：
文献类型：
--
作者：
Engstrand, Tate O.;Cope, Emily M.;Vasquez, Guillermo;Haddock, Jo W.;Hertz, Mary B.;Wang, Xiaoping;Latturner, Susan E.
在La/Ni共晶熔剂中，由铁和蒽反应合成La15(FeC6)4H。蒽是产物中碳和氢的来源。这种金属碳化物的结构特点是氢化物离子位于四面体的间隙位置，被镧离子包围，这一点通过单晶中子衍射研究得到了证实。中心铁原子由三个乙烯基配位的三角形平面fec6单元与La3.67FeC6类似，La3.67FeC6是一种在没有氢化物源的情况下形成的化合物。磁化率数据证实铁的位置没有磁矩。态密度计算表明，La15(FeC6)4H是金属的，并且由于氢化物阴离子的加入而稳定。
La15(FeC6)4H was synthesized from the reaction of iron and anthracene in La/Ni eutectic flux. Anthracene was the source of both the carbon and hydrogen in the product. The structure of this metal carbide hydride features hydride ions in tetrahedral interstitial sites surrounded by lanthanum ions, which was confirmed by single-crystal neutron diffraction studies. The trigonal planar FeC6units in which the central iron atom is coordinated by three ethylenide groups are similar to those found in La3.67FeC6, a previously reported compound that is formed in the absence of a hydride source. Magnetic susceptibility data confirm that the iron sites do not have magnetic moments. Density of states calculations indicate that La15(FeC6)4H is metallic and is stabilized by the incorporation of hydride anions.