J. Liao, C. Varotsis, M. Kanatzidis
1993
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85
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Journal
Inorganic Chemistry
Abstract
Six alkali metal tin polysulfides and one monosulfide, K 2 Sn 2 S 8 (I), α-Rb 2 Sn 2 S 8 (II), β-Rb 2 Sn 2 S 8 (III), K 2 Sn 2 S 5 (IV), Cs 2 Sn 2 S 6 (V), and Cs 2 SnS 14 (VI), respectively, were synthesized by a molten salt technique. I and IV were made by heating mixtures of Sn/K 2 S/S (molar ratio 1/2/8) at 275 and 320 o C, respectively, for 4-6 days. II and III were made by heating mixtures of Sn/Rb 2 S/S (molar ratio 1/2/12 for II and 1/1/8 for III) at 330 and 450 o C, respectively, for 4-6 days. V and VI were made by heating mixtures of Sn/C 2 S/S (molar ratio 1/3/8 for V and 1/2/8-12 for VI) at 275°C for 4-6 days