Acta Cryst. (2005). E61, m664-m666  [ doi:10.1107/S1600536805006781 ]

Octaureasamarium(III) triiodide

E. V. Savinkina, Y. F. A. Ansari, I. A. Zamilatskov, D. V. Albov and A. Y. Tsivadze

Abstract: The Sm atom of the title compound, [Sm(CH₄N₂O)₈]I₃, is eight-coordinate, with eight monodentate urea ligands bound through their O atoms; the corresponding polyhedron is a distorted double-capped trigonal prism. All the urea molecules are involved in intramolecular hydrogen bonds. This compound is a rare example of a lanthanide complex containing no water and in which the anions do not serve as ligands.

Online 11 March 2005

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