期刊
INORGANIC CHEMISTRY
卷 45, 期 26, 页码 10786-10789出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic0613816
关键词
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The crystal structure of Li80Ba39N9, a new representative of alkali-alkaline-earth metal subnitrides prepared from the metals and barium azide, was investigated based on single-crystal X-ray diffraction data. The compound has a novel crystal structure with a tetragonal unit cell, space group I (4) over bar 2m, a = 16.0763(8) angstrom, c = 32.267(2) angstrom, Z = 2, and V = 8330.0(8) angstrom(3). The structure can be described in terms of subnitride clusters with internal ionic bonding and metallic bonding in the rest of the space. The compound contains a new cluster Li12Ba5N6 and polytetrahedral Li clusters based on centered Li-13 icosahedra, which are typical for Li-rich intermetallic compounds.
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