Crystal structure of ({(1R,2R)-N,N'-bis-[(quino-lin-2-yl)methyl]cyclo-hexane-1,2-di-amine}-chlorido-iron(III))-?-oxido-[tri-chlorido-ferrate(III)] chloro-form monosolvate.

ABSTRACT: The first Fe^III atom in the solvated title compound, [Fe₂Cl₄O(C₂₆H₂₈N₄)]·CHCl₃, adopts a distorted six-coordinate octa-hedral geometry. It is coordinated by one chloride ligand, four N atoms from the (1R,2R)-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.

SUBMITTER: Swift H 

PROVIDER: S-EPMC5499263 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature