Crystal structure of di­aqua­[5,10,15,20-tetra­kis­(4-meth­oxy­phen­yl)porphyrinato-κ4N]iron(III) di­aqua­(18-crown-6)potassium bis­(tri­fluoro­methane­sulfonate)–18-crown-6 (1/2)

摘要

In the title compound, [FeIII(C48H36N4O2)(H2O)2][K(C12H24O6)(H2O)2](SO3CF3)2·2C12H24O6, the FeIII atom is situated on an inversion centre and is octa­hedrally coordin­ated by four pyrrole N atoms of the deprotenated 5,10,15,20-tetra­kis­(4-meth­oxy­phen­yl)porphyrinate ligand and two water mol­ecules. The average equatorial Fe—N(pyrrole) bond length [2.043 (6) Å] is consistent with a high-spin (S = 5/2) iron(III) metalloporphyrin derivative. The K+ cation, which also lies on an inversion centre, is chelated by the six O atoms of one 18-crown-6 mol­ecule and is additionally coordinated by two water mol­ecules in a distorted hexa­gonal–bipyramidal geometry. In the crystal, the cations, anions and one non-coordinating 18-crown-6 mol­ecule are linked by classical O—H⋯O hydrogen bonds and non-conventional C—H⋯O hydrogen bonds, leading to a one-dimensional supra­molecular architecture along [10-1]. The crystal packing is further stabilized by weak C—H⋯π inter­actions involving pyrrole and phenyl rings of the porphyrins, as well as weak C—H⋯F contacts involving the (SO3CF3)− counter-ion and the 18-crown-6 mol­ecules.