A new quaternary rare-earth sulfide has been isolated and identified. Crystals of La 6 MgGe 2 S 14 , as well as of the previously identified La 6 MgSi 2 S 14 have been grown from a mixed binaryhalide eutectic flux. They both crystallize in the hexagonal space group C 6 6 -P6 3 , with Z" "1. The crys
Structure Modification on Quaternary Rare Earth Thiophosphates: NaYbP2S6, NaSmP2S6, and KSmP2S7
β Scribed by Eun-Young Goh; Eun-Jeong Kim; Sung-Jin Kim
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 993 KB
- Volume
- 160
- Category
- Article
- ISSN
- 0022-4596
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β¦ Synopsis
x ) 6ux at 7503C. The structures were determined by the single-crystal X-ray di4raction technique. The air-sensitive darkred crystals of NaYbP 2 S 6 crystallize in the triclinic space group P-1 with a β«Ψβ¬ 6.8241(10) A > , b β«Ψβ¬ 7.0371(10) A > , c β«Ψβ¬ 9.107(2) A > , β«Ψβ¬ 87.17(2)3, β«Ψβ¬ 87.62(2)3, β«Ψβ¬ 88.30(2)3, and Z β«Ψβ¬ 2. The yellow plate crystals of NaSmP 2 S 6 crystallize in the monoclinic space group P2 1 /a with a β«Ψβ¬ 11.0717( 10) A > , b β«Ψβ¬ 7.2999(1) A > , c β«Ψβ¬ 11.579(3) A > , β«Ψβ¬ 111.30(2)3, and Z β«Ψβ¬ 4. The pale yellow plate crystals of KSmP 2 S 7 crystallize in the monoclinic space group P2 1 /a with a β«Ψβ¬ 8.981(2) A > , b β«Ψβ¬ 12.254(2) A > , c β«Ψβ¬ 9.609(1) A > , β«Ψβ¬ 90.27(2)3, and Z β«Ψβ¬ 4.
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