RE6Pd13Zn4 (RE = La‐Nd, Sm, Gd, Tb) – New Palladium‐rich Phases with Pd@RE6 Octahedra in bcc Packing1. Issue 14 (12th September 2014)

• Record Type: Journal Article
• Authors: Gerke, Birgit; Janka, Oliver; Pöttgen, Rainer
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 640:Issue 14(2014)
• Page Start: 2747
• Page End: 2752
• Publication Date: 2014-09-12
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.201400334
• Languages: English
• ISSNs: 0044-2313

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p> The intermetallic zinc compounds <italic>RE</italic>₆Pd₁₃Zn₄ (<italic>RE</italic> = La – Nd, Sm, Gd, Tb) were synthesized from the elements in sealed niobium ampoules. They crystallize with the cubic Na₁₆Ba₆N (Dy₆Fe₁₆O) type structure, space group <italic>Im</italic><inline-formula><alternatives><tex-math notation="tex"><![CDATA[$\bar{3}$]]></tex-math><inline-graphic xlink:href="ark:/27927/pgh2cqw5z55" mimetype="image" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></alternatives></inline-formula><italic>m</italic>. The samples were investigated by powder X‐ray diffraction and four structures were refined on the basis of single‐crystal X‐ray diffraction data. The striking structural motifs are palladium centered <italic>RE</italic>₆ octahedra in a <italic>bcc</italic> arrangement. These octahedra are surrounded by a [Pd₁₂Zn₄] network. Magnetic susceptibility studies of Gd₆Pd₁₃Zn₄ show Curie‐Weiss behavior and an experimental magnetic moment of 7.75(2) μ_B per Gd atom. Gd₆Pd₁₃Zn₄ orders antiferromagnetically at <italic>T</italic>_N = 10.5(1) K.</p> </abstract>