Synthesis and crystal structure of a heterobimetallic nickel–manganese 12-metallacrown-4 methanol disolvate monohydrate compound

The synthesis and crystal structure of the title compound [systematic name: di-μ-acetato-tetra­kis­(μ(4)-N,2-dioxido­benzene-1-carboximidato)hexa­methano­ltetra­manganese(III)nickel(II) methanol disolvate monohydrate], [Mn(4)Ni(C(7)H(4)NO(3))(4)(C(2)H(3)O(2))(2)(CH(4)O)(6)]·2CH(4)O·H(2)O or Ni(OAc)(2)[12-MC(Mn(III)N(shi))-4](CH(3)OH)(6)·2CH(3)OH·H(2)O, where MC is metallacrown, (−)OAc is acetate, and shi(3−) is salicyl­hydroximate, are reported. The macrocyclic metallacrown is positioned on an inversion center located on the Ni(II) ion that resides in the central MC cavity. The macrocycle consists of an Mn(III)–N–O repeat unit that recurs four times to generate an overall square-shaped mol­ecule. Both the Ni(II) and Mn(III) ions are six-coordinate with an octa­hedral geometry. In addition, the Mn(III) ions possess an elongated Jahn–Teller distortion along the z-axis of the coordination environment. The inter­stitial water mol­ecule is slightly offset from and disordered about an inversion center.