[μ-10,21-Dimethyl-3,6,14,17-tetraazatricyclo[17.3.1.18,12]tetracosa-1(23),8(24),9,11,19,21-hexaene-23,24-diolato-κ8 N 3,N 6,O 23,O 24:N 14,N 17,O 23,O 24]bis[(nitrato-κ2 O,O′)nickel(II)]

In the title centrosymmetric dinuclear nickel complex, [Ni2(C22H30N4O2)(NO3)2], each of the two NiII atoms has a distorted octahedral geometry, defined by two N atoms and two O atoms from the macrocyclic ligand and two O atoms from a chelating nitrate anion. The two Ni atoms are bridged by two phenolate O atoms, forming a four-membered Ni2O2 ring.