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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Unusually Short Ce–Ru Distances in CeRuAl and Related Compounds

  • Wilfried Hermes , Samir F. Matar and Rainer Pöttgen EMAIL logo
From the journal Zeitschrift für Naturforschung B
https://doi.org/10.1515/znb-2009-0805
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The aluminide CeRuAl with orthorhombic LaNiAl-type structure contains two crystallographically independent cerium sites which both exhibit relatively short Ce-Ru distances, i. e. 280 - 302 pm for Ce1 and 286 - 310 pm for Ce2. Susceptibility measurements show intermediate valence behavior of the cerium atoms (1.19(1) μB per formula unit) and no magnetic ordering down to 2 K. Chemical bonding analysis reveals a non-magnetic ground state and strong Ce-Ru bonding. The Ce-Ru bonding peculiarities of CeRuAl are discussed in line with those of other binary and ternary cerium- ruthenium compounds

Graphical Abstract

Unusually Short Ce–Ru Distances in CeRuAl and Related Compounds

Unusually Short Ce–Ru Distances in CeRuAl and Related Compounds

Keywords: Cerium; Ruthenium; Intermediate Valence; Magnetic Properties; Electronic Structure
Received: 2009-6-3
Published Online: 2014-6-2
Published in Print: 2009-8-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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From the journal
Zeitschrift für Naturforschung B
Zeitschrift für Naturforschung B
Volume 64 Issue 8

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