High-pressure polymorphism as a step towards destabilization of LiBH4

被引:105
作者
Filinchuk, Yaroslav [1 ]
Chernyshov, Dmitry [1 ,3 ]
Nevidomskyy, Andriy [2 ]
Dmitriev, Vladimir [1 ]
机构
[1] Swiss Norwegian Beam Lines ESRF, F-38043 Grenoble, France
[2] Univ Sherbrooke, Dept Phys, Sherbrooke, PQ J1K 2R1, Canada
[3] St Petersburg State Univ, Fac Geol, Dept Crystallog, St Petersburg 199034, Russia
关键词
high pressure; hydrides; polymorphism; structure elucidation; X-ray diffraction;
D O I
10.1002/anie.200704777
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Performing under pressure: The BH4 group in the high-pressure modification of LiBH4 has an unprecedented square-planar coordination by four Li atoms (see picture). This structure exhibits a strikingly short H⋯H contact between adjacent BH4 anions and thus may show completely different hydrogen-storage properties if stabilized by chemical substitution at ambient pressure. (Figure Presented) © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:529 / 532
页数:4
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