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2005
Indium
I 2300
18- 017
Phase Stabilization Through Electronic Tuning: Electron-Poorer Alkali-Metal—Indium Compounds with Unprecedented In/Li Clusters. — The compounds
K34In92.30Li12.70 (I), K44 Na20In 91.82Li 13.18 (II), and K14Na 20In96.30 (III) are synthesized by
high-temperature reactions of the elements (550 °C, 5 h) and characterized by powder
and single crystal XRD, electrical resistivity, magnetic susceptibility, and magnetization measurements as well as extended Hueckel band structure calculations. All three
compounds crystallize in the space group R3m with Z = 3. Novel mixed In/Li anionic
icosahedra and fused icosahedra form in (I) and (II). All three compounds contain In28
as the first triply fused In icosahedra, which are further linked into (In28)In(In 28) sandwich adducts in (I) and (II) and (In28)In 2(In 28) in (III). — (LI, B.; CORBETT*, J. D.;
J. Am. Chem. Soc. 127 (2005) 3, 926-932; Dep. Chem., Iowa State Univ., Ames,
IA 50011, USA; Eng.) — W. Pewestorf
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