Ternary Hydrides Possessing the Cubic Perovskite Structure. I. A Neutron‐Diffraction Study of BaLiH3 and BaLiD3

Ternary Hydrides Possessing the Cubic Perovskite Structure. I. A Neutron‐Diffraction Study of BaLiH3 and BaLiD3
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具有立方钙钛矿结构的三元氢化物 I. BaLiH3 和 BaLiD3 的中子衍射研究。

DOI:
10.1063/1.1668040
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发表时间:
1968
影响因子:
4.4
通讯作者:
A. Andresen
A. Andresen
中科院分区:
化学2区
文献类型:
--
作者:
A. Maeland;A. Andresen

文献摘要

被引文献

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对BaLiH 3和BaLiD 3粉末样品的中子衍射研究表明,其结构是倒置的钙钛矿型,空间群为Pm 3 m:Ba在(0,0,0)中,Li在(12,12,12)中,H或D在(12,12,0; 0,12,12; 12,0,12)中。SrLiH 3和EuLiH 3可能是同构的。BaLiH 3的晶格参数为4.023 ± 0.001 A,BaLiD 3的晶格参数稍小。氢的总中子散射截面为30 ± 2 B,与其他含氢化合物相比是相当低的值,但与在其他中子源中观察到的值相当。
Neutron‐diffraction studies on powered samples of BaLiH3 and BaLiD3 have shown that the structure is of the inverted perovskite type with the atomic positions of space group Pm3m: Ba in (0, 0, 0), Li in (12, 12, 12), and H or D in (12, 12, 0; 0, 12, 12; 12, 0, 12). The SrLiH3 and EuLiH3 are presumably isostructural. The lattice parameter for BaLiH3 is 4.023 ± 0.001 A and slightly smaller for BaLiD3. The total neutronscattering cross section for hydrogen is 30 ± 2 b, a rather low value compared to other hydrogen‐containing compounds, but comparable to that observed in other hydrides.