Erbium dinickel disilicide, ErNi<sub>2</sub>Si<sub>2</sub>

A ternary hexaerbium triacontacobalt enneakaidecasilicide, ErCo5Si(3.17), crystallizes as a combination of disordered variants of the hexagonal UCo5Si3 (P6₃/m) and Yb6Co30P19 (P6) structure types and is closely related to the Sc6Co30Si19 and Ce6Rh30Si19 types. The Er, Co and three of the Si atoms occupy sites of m.. symmetry and a fourth Si atom occupies a site of -6.. symmetry. The environment of the Er atom is a 21-vertex pseudo-Frank-Kasper polyhedron. Trigonal prismatic coordination is observed for the Si atoms. The Co atoms are enclosed in heavily deformed cuboctahedra and 11-vertex polyhedra. Crystallochemistry analysis and the data from electronic structure calculations (TB-LMTO-ASA) suggest that the Er atoms form positively charged cations which compensate the negative charge of the [Co12Si9](m-) polyanions.

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Grown from lithium flux, the ErCo₅Si_3.17silicide is a combination of disordered derivatives of the UCo₅Si₃and Yb₆Co₃₀P₁₉structure types

Stetskiv

Rozdzynska-Kielbik

Misztal

et al. 2015

Acta Crystallogr C

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Abstract: Key indicatorsSingle-crystal X-ray study T = 295 K Mean (Ni-Si) = 0.004 Å R factor = 0.014 wR factor = 0.036 Data-to-parameter ratio = 10.9For details of how these key indicators were automatically derived from the article, see

Cited by 1 publication

References 5 publications

Grown from lithium flux, the ErCo₅Si_3.17silicide is a combination of disordered derivatives of the UCo₅Si₃and Yb₆Co₃₀P₁₉structure types

Grown from lithium flux, the ErCo₅Si_3.17silicide is a combination of disordered derivatives of the UCo₅Si₃and Yb₆Co₃₀P₁₉structure types

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Erbium dinickel disilicide, ErNi2Si2

Abstract: Key indicatorsSingle-crystal X-ray study T = 295 K Mean (Ni-Si) = 0.004 Å R factor = 0.014 wR factor = 0.036 Data-to-parameter ratio = 10.9For details of how these key indicators were automatically derived from the article, see

Cited by 1 publication

References 5 publications

Grown from lithium flux, the ErCo5Si3.17silicide is a combination of disordered derivatives of the UCo5Si3and Yb6Co30P19structure types

Grown from lithium flux, the ErCo5Si3.17silicide is a combination of disordered derivatives of the UCo5Si3and Yb6Co30P19structure types

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Erbium dinickel disilicide, ErNi₂Si₂

Grown from lithium flux, the ErCo₅Si_3.17silicide is a combination of disordered derivatives of the UCo₅Si₃and Yb₆Co₃₀P₁₉structure types

Grown from lithium flux, the ErCo₅Si_3.17silicide is a combination of disordered derivatives of the UCo₅Si₃and Yb₆Co₃₀P₁₉structure types