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Synthesis of Li3Cu2SbO6, a New Partially Ordered Rock Salt Structure

✍ Scribed by J.M.S. Skakle; M.A. Castellanos R.; S.Trujillo Tovar; A.R. West


Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
311 KB
Volume
131
Category
Article
ISSN
0022-4596

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✦ Synopsis


The new phase Li 3 Cu 2 SbO 6 , synthesised by solid state reaction at 1000 Β°C, is monoclinic, a‫,)1(9564.5؍‬ b‫,)2(2727.8؍‬ c‫؍‬ 9.7807(3) A s , ‫,Β°)2(080.59؍‬ space group C2/c, and has a partially ordered rock salt structure related to the ordered structure of Li 2 TiO 3 by additional cation order: Ti sites are occupied by Cu and Sb in ordered fashion; Li sites contain Li/Cu in two sets, but with nonstatistical occupancy, and Li. Bond lengths show a Jahn-Teller elongation of CuO 6 octahedra consistent with magnetic susceptibility data that indicate paramagnetic Cu 2Ψ‰ ions. Li 3 Cu 2 SbO 6 shows a low level of electronic conductivity.


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