Crystal structure of tris­(1,10-phenanthroline-κ(2) N,N′)iron(II) bis­[bis­(tri­fluoro­methyl­sulfon­yl)imide] monohydrate

The crystal structure of the title complex, [Fe(C(12)H(8)N(2))(3)][(CF(3)SO(2))(2)N](2)·H(2)O, is constructed by one octa­hedral [Fe(phen)(3)](2+) (phen = 1,10-phenanthroline) cation (point group symmetry 2), two Tf(2)N(−) [bis­(tri­fluoromethyl­sulfon­yl)imide] anions, and one water mol­ecule of crystallization (point group 2). The Fe—N bond lengths are indicative of a d (6) low-spin state for the Fe(II) ion in the complex. The dihedral angle between the phen ligands in the cation is 87.64 (6)°. The Tf(2)N(−) counter-anion is non-coordinating, with the –CF(3) groups arranged in a trans fashion with respect to each other, leading to an anti,anti conformation of the –CF(3) groups and –SO(2)N– moieties relative to the S—C bonds. The water mol­ecule of crystallization connects two O atoms of the Tf(2)N(−) anions through weak hydrogen bonds. C—H⋯O hydrogen-bonding inter­actions are also observed, consolidating the packing of the mol­ecules into a three-dimensional network structure.