Tris­(nitrato-κ²O,O′)bis[4,4,5,5-tetra­methyl-2-(pyridin-2-yl-κN)imidazoline-1-oxyl 3-oxide-κO]holmium(III)

In the title compound, [Ho(NO₃)₃(C₁₂H₁₆N₃O₂)₂], the Ho^III ion is ten-coordinated in a distorted bicapped square-anti­prismatic environment by two N,O-bidentate nitronyl nitroxide radical ligands and three O,O′-bidentate nitrate anions. Complex mol­ecules are connected by C—H...O hydrogen bonds into a three-dimensional network.