Crystal structure of [{FeCl(3)}(2)(μ-PC(H)P)(2)] [PC(H)P = 1,3-bis-(2-di-phenyl-phosphanyleth-yl)-3H-imidazol-1-ium] with an unknown solvent.

The crystal structure of the title compound, bis-{μ-1,3-bis-[2-(di-phenyl-phosphan-yl)eth-yl]-1H-imidazole-κ(2) P:P'}bis-[tri-chlorido-iron(III)], [Fe(2)Cl(6)(C(31)H(31)N(2)P(2))(2)] or [{FeCl(3)}(2)(μ-PC(H)P)(2)] (PC(H)P = C(31)H(31)N(2)P(2)), consists of dinuclear complexes that are located about centres of inversion. The Fe(III) cation is in a distorted trigonal-bipyramidal coordination with three chloride ligands located in the trigonal plane and two P atoms of symmetry-related PC(H)P ligands occupying the axial positions. Within the centrosymmetric complex, a pair of intra-molecular C-H⋯Cl hydrogen bonds between aromatic CH groups and chloride ligands are found. Individual complexes are linked into layers parallel to (01) by inter-molecular C-H⋯Cl hydrogen bonds. No pronounced inter-molecular inter-actions occur between these layers. This arrangement leaves space for disordered solvent mol-ecules. Electron density associated with these additional solvent mol-ecules was removed with the SQUEEZE procedure in PLATON [Spek (2015 ▸). Acta Cryst. C71, 9-18]. The given chemical formula and other crystal data do not take into account the unknown solvent mol-ecule(s).