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The title compound, [Ni(C45H28N4O)], crystallizes in the space group I\overline{4}2d and resides on a crystallographic fourfold rotoinversion axis with only a quarter of the complex in the asymmetric unit. The complex displays positional disorder as the one aldehyde group on the ligand can be located at four different positions. It was necessary to model this as com­po­sitional disorder to obtain a correct model and refinement. The practical approach to the refinement is explained.
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