Intermetallic phases in the Sc–Ir–In system – synthesis and structure of Sc1.024Ir2In0.976 and Sc3Ir1.467In4
Author:
Gulay Nataliya L.1, Kalychak Yaroslav M.2, Pöttgen Rainer1
Affiliation:
1. Institut für Anorganische und Analytische Chemie , Universität Münster , Corrensstrasse 30 , 48149 Münster , Germany 2. Department of Analytical Chemistry , Ivan Franko National University of Lviv , Kyryla i Mefodiya Street 6 , 79005 Lviv , Ukraine
Abstract
Abstract
The intermetallic scandium compounds Sc1.024Ir2In0.976 and Sc3Ir1.467In4 were synthesized by reactions of the elements in sealed tantalum ampoules at high temperature followed by annealing for crystal growth. Both structures were refined from single-crystal X-ray diffractometer data: MnCu2Al type,
F
m
3
‾
m
$Fm‾{3}m$
, a = 639.97(19) pm, wR2 = 0.0376, 41 F
2 values, seven variables for Sc1.024Ir2In0.976 and
P
6
‾
$P‾{6}$
, a = 769.99(5), c = 684.71(4) pm, wR2 = 0.0371, 967 F
2 values, 33 variables for Sc3Ir1.467In4. Sc1.024Ir2In0.976 is a new Heusler phase with a small homogeneity range due to Sc/In and In/Sc mixing. The structure of Sc3Ir1.467In4 is closely related to that of Sc3Rh1.594In4 and belongs to the large family of ZrNiAl superstructures. The striking structural motif is the ordered stacking of empty In6 and filled Ir@In6 prisms with Ir–In distances of 269 pm.
Publisher
Walter de Gruyter GmbH
Subject
General Chemistry
Reference56 articles.
1. GschneidnerJr.K. A. In Scandium, Its Occurrence, Chemistry, Physics, Metallurgy, Biology and Technology; Horowitz, C. T., Ed. Academic Press: London, 1978; pp. 152–332. 2. Kotur, B. Y. Croatica Chim. Acta 1998, 71, 635–658; https://doi.org/10.1515/9783486794601-019. 3. Kotur, B. Y., Gratz, E. Scandium alloy systems and intermetallics. In Handbook of the Physics and Chemistry of Rare Earths; Gschneidner Jr, K. A., Eyring, L., Eds. Elsevier: Amsterdam, 1999; pp. 339–533. chapter 175. 4. Eckert, H., Pöttgen, R. Z. Anorg. Allg. Chem. 2010, 636, 2232–2243; https://doi.org/10.1002/zaac.201000197. 5. Gulay, N. L., Hoffmann, R.-D., Zaremba, V. I., Kalychak, Y. M., Pöttgen, R. Z. Kristallogr. 2020, 235, 417–422; https://doi.org/10.1515/zkri-2020-0032.
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|