Di-μ2-cyanido-dicyanidobis{2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato}(1,4,8,11-tetraazacyclotetradecane)dichromium(III)nickel(II) methanol disolvate

Abstract

In the title compound, [Cr2Ni(C16H14N2O2)2(CN)4(C10H24N4)]·2CH3OH, each [Cr(salen)(CN)2] unit {salen is 2,2′-[ethane-1,2-diylbis(nitrilo­methyl­idyne)]diphenolate} acts as a monodentate ligand through one of its two cyanide groups N bound to a central [Ni(cyclam)]2+ core (cyclam is 1,4,8,11-tetra­azacyclo­tetra­deca­ne). Each CrIII ion is coordinated by two N and two O atoms from a salen ligand situated in the equatorial plane with two trans cyanide C atoms, yielding a distorted octa­hedral coordination geometry. The NiII atom lies on an inversion center and is octa­hedrally coordinated by a cyclam ligand lying in the equatorial plane and by two cyanide N atoms. The asymmetric unit contains one half of the complex mol­ecule and a methanol solvent mol­ecule. In the crystal structure, the complex mol­ecule is linked to the methanol solvent mol­ecules via O—H⋯O and N—H⋯O hydrogen bonds. Individual complex mol­ecules are linked by C—H⋯N hydrogen bonds, forming chains along b.