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Acta Cryst. (2012). E68, m1341
[ doi:10.1107/S1600536812040287 ]

Bis[4,4,5,5-tetramethyl-2-(pyridin-2-yl-[kappa]2N)imidazoline-1-oxyl 3-oxide-[kappa]O]tris(nitrato-[kappa]2O,O')terbium(III)

D. Li

Abstract: The title compound, [Tb(NO3)3(C12H16N3O2)2], was prepared from the nitroxide radical ligand 4,4,5,5-tetramethyl-2-(pyridin-2-yl)-imidazoline-1-oxyl-3-oxide and TbIII nitrate. The TbIII ion adopts a doubly-capped square-antiprismatic coordination environment defined by three chelating nitrate anions and two N,O-bidentate nitronyl nitroxide radical ligands. Weak C-H...O hydrogen bonds connect the molecules into a three-dimensional framework. The title structure is isotypic with the Ho analogue [Li (2012). Acta Cryst. E68, 550].

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