Acta Cryst. (2005). E61, i79-i81  [ doi:10.1107/S1600536805011797 ]

PrCu_5-xIn_1+x [x = 0.24 (1)] with the orthorhombic CeCu₆ structure type

S. Bobev and E. D. Bauer

Abstract: Large single crystals of the title compound were synthesized from the corresponding elements using an eutectic Cu/In mixture as a solvent. PrCu_5-xIn_1+x [x = 0.24 (1)] is a new ternary derivative of the orthorhombic CeCu₆ structure type [space group Pnma (No. 62)]. This result contradicts the findings of Kalychak et al. [(1988). Dop. Akad. Nauk Ukr. RSR Ser. B, 9, 39-42], who found that CeCu_4.38In_1.62 belongs to a new structure type (space group Pnnm), derived from the parent CeCu₆ compound by doubling the a axis. In the present structure, all the atoms except one of the Cu species occupy special positions with mirror symmetry.

Online 23 April 2005

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