ChemInform Abstract: Synthesis and Magnetic Properties of Rare Earth Ruthenates, Ln₅Ru₂O₁₂ (Ln: Pr, Nd, Sm—Tb).

Abstract

Ruthenium I 7800Synthesis and Magnetic Properties of Rare Earth Ruthenates, Ln5Ru2O12 (Ln: Pr, Nd, Sm-Tb). -Single crystals of the title compounds are prepared from Ln 2 O 3 and Ru or RuO2 in a NaOH or KOH flux (Ag tubes, 600°C, 12 h). The isotypic compounds crystallize in the monoclinic space group C2/m with Z = 2. The structures consist of one-dimensional chains of edge sharing RuO6 octahedra which are separated by a two-dimensional LnOx polyhedral framework. The compounds are paramagnetic and antiferromagnetic for Ln: Nd, Sm-Gd, and Ln: Tb, respectively. -(BHARATHY, M.; GEMMILL, W. R.; FOX, A. H.; DARRIET, J.; SMITH, M. D.; HADERMANN, J.; REMY, M. S.; ZUR LOYE*, H.-C.; J. Solid State