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[13.8.0.02,11.03,8.018,23]tricosa-1(15),2(11),3(8),4,6,9,16,18(23),19,21-deca­en-13-yl]ethane}­dichlorido­iron(II) di­chloro­methane disolvate), [FeCl2(C42H28O4P2)2]·2CH2Cl2, the FeII 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-FeCl2P4 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 CH2Cl2 solvent mol­ecule, which is disordered over two sets of site with refined occupancies in the ratio 0.700 (6):0.300 (6).