Co-Crystallized (Macrocyclic tetraamine)bis(thiocyanato-N)nickel(II) Complexes

In (2,7,9,14-tetramethyl-1,4,8,11-tetraazacyclotetradecane-κ⁴N)bis(thiocyanato- N)nickel(II) (2,5,9,12-tetramethyl-1,4,8,11-tetraazacyclotetradecane-κ⁴N)bis(thiocyanato-N)nickel(II) diacetonitrile solvate, [NiL¹(NCS)₂][NiL²(NCS)₂]·2CH₃CN, where L¹ and L² (C₁₄H₃₂N₄) are isomeric tetraazacyclotetradecane ligands, each of the co-crystallized complexes has an NiN₄ square plane involving the four N atoms of the secondary amine. In each of the two isomeric complexes, the two thiocyanate ligands coordinate axially through their N atoms.

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