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Licensed Unlicensed Requires Authentication Published by De Gruyter (O) July 16, 2012

The Solid Solution CeAgxZn11–x (x ≤ 2.5)

  • Matthias Eul and Rainer Pöttgen

Abstract

Samples of the solid solution CeAgxZn11–x were prepared from the elements by high-frequency melting in sealed tantalum ampoules. The solid solution extends to about x ≈ 2.5. The samples crystallize with the tetragonal BaCd11 type structure, space group I41/amd. The structure of CeAg2.03Zn8.97 was refined from single crystal X-ray diffractometer data: a = 1079.5(2), c = 694.5(1) pm, wR2 = 0.0226, 385F2 values, and 21 variables. Two of the three crystallographically independent zinc sites of the CeZn11 structure show Zn/Ag mixing: 73(2)% Ag + 27(2)% Zn on 4b and 16.2(8)% Ag + 83.8(8)% Zn on 32i. Temperature dependent susceptibility data on the CeAg1.5Zn9.5 sample showed Curie-Weiss paramagnetism and an experimental magnetic moment of 2.58 μB/Ce atom, indicating stable trivalent cerium. No magnetic ordering was evident down to 3 K.


* Correspondence address: Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstr. 30, 48149 Münster, Deutschland,

Published Online: 2012-07-16
Published in Print: 2012-08

© by Oldenbourg Wissenschaftsverlag, München, Germany

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