Crystal structure of bis­[(R,R)-1,2-(bi­naph­thyl­phospho­nito)ethane]­dichlorido­iron(II) di­chloro­methane disolvate

In the title compound (systematic name: bis­{1,2-bis[12,14-dioxa-13-phospha­penta­cyclo­[13.8.0.0(2,11).0(3,8).0(18,23)]tricosa-1(15),2(11),3(8),4,6,9,16,18(23),19,21-deca­en-13-yl]ethane}­dichlorido­iron(II) di­chloro­methane disolvate), [FeCl(2)(C(42)H(28)O(4)P(2))(2)]·2CH(2)Cl(2), the Fe(II) ion lies on a crystallographic twofold rotation axis and is coordinated by four P atoms from two (R,R)-1,2-bis­(bi­naphthyl­phospho­n­ito)ethane (BPE) ligands and two Cl ligands in a distorted cis-FeCl(2)P(4) octa­hedral coordination geometry. In the crystal, weak C—H⋯O and C—H⋯π inter­actions link the mol­ecules into layers lying parallel to (001). A weak intra­molecular C—H⋯O hydrogen bond is also observed. The asymmetric unit contains one CH(2)Cl(2) solvent mol­ecule, which is disordered over two sets of site with refined occupancies in the ratio 0.700 (6):0.300 (6).