Superstructure formation in Sc5Cu2In4-Reference-Cited by-同舟云学术

Superstructure formation in Sc5Cu2In4

Published:2020-08-21 Issue:10 Volume:235 Page:417-422
ISSN:2196-7105
Container-title:Zeitschrift für Kristallographie - Crystalline Materials
language:en
Short-container-title:

Author:

Gulay Nataliya L.¹,Hoffmann Rolf-Dieter²,Zaremba Vasyl‘ I.³,Kalychak Yaroslav M.¹,Pöttgen Rainer²

Affiliation:

1. Department of Analytical Chemistry , Ivan Franko National University of Lviv , Kyryla i Mefodiya Street 6, 79005 , Lviv , Ukraine

2. Institut für Anorganische und Analytische Chemie, Universität Münster , Corrensstrasse 30, 48149 Münster , Germany

3. Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla i Mephodiya Street 6, 79005 , Lviv , Ukraine

Abstract

Abstract Polycrystalline Sc5Cu2In4 was synthesized by induction melting of the elements and small single crystals were obtained by a slow cooling sequence. Sc5Cu2In4 is the first coinage metal representative in the family of the so-called 5-2-4 intermetallics. The Zr5Ir2In4 type structure of Sc5Cu2In4 was refined from single crystal X-ray diffractometer data: Pnma, a = 1716.75(6), b = 677.94(12), c = 760.69(2) pm, wR2 = 0.0531, 1932 F2 values and 58 variables. Sc5Cu2In4 adopts a superstructure of the Lu5Ni2In4 type (doubling of the b axis and klassengleiche symmetry reduction from Pbam to Pnma), caused by dislocation of the copper atoms (puckering effect). Geometrically, Sc5Cu2In4 is a 4:1 intergrowth structure of distorted AlB2 and CsCl related slabs.

Funder

Deutscher Akademischer Austauschdienst

Publisher

Walter de Gruyter GmbH

Subject

Inorganic Chemistry,Condensed Matter Physics,General Materials Science

Link

https://www.degruyter.com/document/doi/10.1515/zkri-2020-0032/pdf

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