Bis[(cyanido-κC)bis(1,10-phenanthroline-κ²N,N′)copper(II)] pentakis­(cyanido-κC)nitro­soferrate(II) dimethyl­formamide monosolvate

The title compound, [Cu(CN)(C₁₂H₈N₂)₂]₂[Fe(CN)₅(NO)]·C₃H₇NO, is formed of discrete [Cu(phen)₂CN]⁺ cations (phen is 1,10-phenanthroline), nitro­prusside [Fe(CN)₅(NO)]²⁻ anions and dimethyl­formamide (DMF) mol­ecules of crystallization. The metal atom has a distorted trigonal–bipyra­midal coordination environment, defined by four N atoms of two phen mol­ecules and a C atom of the cyanide group (in the equatorial position). The [Fe(CN)₅(NO)]²⁻ anion was found to be disordered about (but not on) a crystallographic twofold rotation axis. Geometries were restrained to ideal values. The dimethyl­formamide solvent mol­ecule was found to be disordered about a crystallographic inversion centre.