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The first Fe III atom in the solvated title compound, [Fe 2 Cl 4 O(C 26 H 28 N 4 )]·CHCl 3 , adopts a distorted six-coordinate octa-hedral geometry. It is coordinated by one chloride ligand, four N atoms from the (1 R ,2 R )- N , N '-bis-[(quinolin-2-yl)methyl]cyclo-hexane-1,2-di-amine ligand, and a bridging oxido ligand attached to the second Fe III atom, which is also bonded to three chloride ions. A very weak intra-molecular N-H⋯Cl hydrogen bond occurs. In the crystal, the coordination complexes stack in columns, and a grouping of six such columns create channels, which are populated by disordered chloro-form solvent mol-ecules. Although the Fe-Cl bond lengths for the two metal atoms are comparable to the mean Fe-Cl bond lengths as derived from the Cambridge Structural Database, the Fe-O bond lengths are notably shorter. The solvent chloro-form mol-ecule exhibits 'flip' disorder of the C-H moiety in a 0.544 (3):0.456 (3) ratio. The only directional inter-action noted is a weak C-H⋯Cl hydrogen bond.

acta crystallographica. section e, crystallographic communications

Crystal structure of ({(1R,2R)-N,N′-bis[(quinolin-2-yl)methyl]cyclohexane-1,2-diamine}chloridoiron(III))-μ-oxido-[trichloridoferrate(III)] chloroform monosolvate