(meso-5,5,7,12,12,14-Hexamethyl-1,4,8,11-tetra­azacyclo­tetra­deca­ne)nickel(II) bis­(O,O′-dibenzyl dithio­phosphate)

In the title salt-type 1:2 adduct, [Ni(C(16)H(36)N(4))](C(14)H(14)O(2)PS(2))(2) or [Ni(tet-a)][S(2)P(OCH(2)Ph)(2)](2), where tet-a is meso-5,5,7,12,12,14-hexa­methyl-1,4,8,11-tetra­azacyclo­tetra­decane, the [Ni(tet-a)](2+) complex cation exhibits a relatively undistorted square-planar geometry about the Ni atom, which lies on an inversion centre and is coordinated by four macrocyclic N atoms. The two O,O′-bis­(2-phenyl­meth­yl) dithio­phosphate anions act as counter-ions to balance the charge and they inter­act with the complex through N—H⋯S hydrogen bonds. Important geometric data include Ni—N distances of 1.958 (3) and 1.963 (3) Å.