X-ray and Neutron Diffraction Studies on "Li4.4Sn"
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- 作者：Corina Lupu ; Jiang-Gao Mao ; J. Wayne Rabalais ; Arnold M. Guloy ; and James W. Richardson ; Jr.
- 刊名：Inorganic Chemistry
- 出版年：2003
- 出版时间：June 16, 2003
- 年：2003
- 卷：42
- 期：12
- 页码：3765 - 3771
- 全文大小：268K
- 年卷期：v.42,no.12(June 16, 2003)
- ISSN：1520-510X
文摘
A chemical analysis and detailed structural characterization, using X-ray single crystal and neutron powder diffraction,of the binary lithium-tin compound "Li4.4Sn" is presented. Phase analyses and subsequent structural refinementsresult in the reformulation of "Li4.4Sn" as Li17Sn4. The lithium-rich binary phase crystallizes with a complex cubicstructure in the space group F
3m, with a = 19.6907(11) Å, Z = 20. The improved crystal structure determinationindicates well-defined lithium atom positions, some of which differ from those previously reported. The nearly Zintlphase Li17Sn4 exhibits poor metallic behavior similar to that of heavily doped semiconductors. Comparisons of therefined crystal structure with previously reported X-ray crystal structures associated with "Li4.4Sn" are discussed.
3m, with a = 19.6907(11) Å, Z = 20. The improved crystal structure determinationindicates well-defined lithium atom positions, some of which differ from those previously reported. The nearly Zintlphase Li17Sn4 exhibits poor metallic behavior similar to that of heavily doped semiconductors. Comparisons of therefined crystal structure with previously reported X-ray crystal structures associated with "Li4.4Sn" are discussed.