The crystal structure of Sm4Ni11In20 and its relation to other indium-rich compounds

• Authors: Yuriy Tyvanchuk , Volodymyr Svitlyk , Mykola Pustovoychenko , Yaroslav Kalychak
• Languages of publication: EN

Abstracts

EN

Polycrystalline Sm4Ni11In20 was obtained by arc-melting of metal ingots. A subsequent high temperature treatment was used for single crystal growth. The Sm4Ni11In20 crystal structure (U4Ni11Ga20 type; C2/m, a = 22.5457(3) Å, b = 4.34929(5) Å, c = 16.5479(2) Å, β = 124.592(2)°, R1 = 0.0358, wR2 = 0.0934) was determined by single crystal synchrotron radiation X-ray diffraction from 2014 independent reflections with I > 2σ(I). Sm4Ni11In20 extends the R
4Ni11In20 (R = Y, Gd, Tb, Dy, Ho) series of phases. The R
4Ni11In20 and RNi3In6 (LaNi3In6 type; R = La, Ce, Pr, Nd, Eu) series have similar compositions. Their structures share similar fragments; in particular the rare earth atom coordination polyhedra are pentagonal prisms with additional atoms.

Keywords

EN

Intermetallics; Crystal structure; X-ray diffraction

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2014
• Volume: 12
• Issue: 2
• Pages: 227-232

Dates

published

1 - 2 - 2014

online

27 - 11 - 2013

Contributors

author

Yuriy Tyvanchuk

• Ivan Franko National University of Lviv

author

Volodymyr Svitlyk

author

Mykola Pustovoychenko

• Ivan Franko National University of Lviv

author

Yaroslav Kalychak

• Ivan Franko National University of Lviv

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Identifiers

DOI

10.2478/s11532-013-0364-7