Acta Cryst. (2013). E69, m12-m13
[ doi:10.1107/S1600536812048611 ]
Abstract: In the title hydrated molecular salt, [Fe(C12H8N2)3](C9H5N4O)2·0.5H2O, the water molecule site is half-occupied. The Fe-N bond lengths within the octahedral tris-chelate [Fe(phen)3]2+ ion (phen is 1,10-phenantroline) are indicative of a low-spin d6 electronic configuration for the metal ion. The C-N, C-C and C-O bond lengths in the polynitrile anions indicate extensive electronic delocalization. In the crystal, the components are linked through O-HN hydrogen bonds, forming  chains, as well as through Coulombic interactions.
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