Bis[chloridobis(1,10-phenanthroline)copper(II)] pentacyanidonitrosoferrate(II) dimethylformamide monosolvate

Abstract

The title complex [CuCl(C12H8N2)2]2[Fe(CN)5(NO)]·C3H7NO, consists of discrete [Cu(phen)2Cl]+ cations (phen is 1,10-phenanthroline), [Fe(CN)5NO]2− anions and one di­methyl­formamide (DMF) solvent mol­ecule of crystallization per asymmetric unit. The CuII atom is coordinated by two phenanthroline ligands and one chloride ion in a distorted trigonal–bipyramidal geometry. The dihedral angle between the phen ligands is 77.92 (7)°. The cation charge is balanced by a disordered nitro­prusside counter-anion with the FeII atom located on an inversion center with a slightly distorted octa­hedral coordination geometry. In the crystal, weak C—H⋯N and C—H⋯Cl hydrogen bonds connect anions and cations into a two-dimensional network parallel to (100). In addition, π–π stacking inter­actions are observed with centroid–centroid distances in the range 3.565 (2)–3.760 (3)Å. The di­methyl­formamide solvent mol­ecule was refined as disordered about an inversion center.

Direct Synthesis and Crystal Structure of Bis(bromido-Bis(1,10 Phenanthroline)-Copper(ii)) Nitroprusside Dimethylformamide Solvate

“…1). The Fe-N/C bond distances in the range 1.846(5)-1.935(5) Å (Table 1) correspond to those typically observed in the [Fe(CN)5NO] 2anion [13]. The structure is completed by dimethylformamide solvent molecules that were found to be disordered about the crystallographic inversion centre.…”