Ba3Zr2S7, the Low-Temperature Polymorph

Hung, Y.-C.; Fettinger, J.C.; Eichhorn, B.W.

doi:10.1107/S0108270197003089

Ba₃Zr₂S₇, the Low-Temperature Polymorph

Y.-C. Hung, J. C. Fettinger and B. W. Eichhorn

The synthesis and crystal structure of the low-tempterature polymorph of barium zirconium sulfide is reported. The title compound contains double BaZrS₃ perovskite layers separated by BaS layers. The compound is the n = 2 member of the Ba_n+1Zr_nS_3n+1 Ruddlesden-Popper sulfides. This polymorph of Ba₃Zr₂S₇ was crystallized at 1203 K in a BaCl₂/CsCl eutectic flux and has P4₂/mnm cystal symmetry in contrast to the high-temperature polymorph which has I4/mmm crystal symmetry.

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Ba₃Zr₂S₇, the Low-Temperature Polymorph

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