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Twinned caesium cerium(IV) penta-fluoride.

ABSTRACT: Single-crystals of CsCeF5 were synthesized hydro-thermally. The crystal under investigation was twinned by pseudo-merohedry with a twofold rotation around the c axis as an additional twinning operation. The crystal structure is built of layers of distorted edge- and corner-sharing CeF8 square-anti-prisms. The Cs(+) cations are located between the layers and exhibit coordination numbers of nine. Upon compression, CsCeF5 undergoes an irreversible phase transition at about 1?GPa.

SUBMITTER: Grzechnik A

PROVIDER: S-EPMC3998492 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature

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Twinned caesium cerium(IV) penta-fluoride.

Grzechnik Andrzej A Underwood Christopher C CC Kolis Joseph W JW

Acta crystallographica. Section E, Structure reports online 20140219 Pt 3

Single-crystals of CsCeF5 were synthesized hydro-thermally. The crystal under investigation was twinned by pseudo-merohedry with a twofold rotation around the c axis as an additional twinning operation. The crystal structure is built of layers of distorted edge- and corner-sharing CeF8 square-anti-prisms. The Cs(+) cations are located between the layers and exhibit coordination numbers of nine. Upon compression, CsCeF5 undergoes an irreversible phase transition at about 1 GPa. ...[more]

PMID: 24764931

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