| (C12H12N2)[Fe(H2O)6](SO4)2·H2O | Z = 2 |
| Mr = 558.32 | F(000) = 580 |
| Triclinic, P1 | Dx = 1.671 Mg m−3 |
| Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
| a = 6.772 (1) Å | Cell parameters from 4117 reflections |
| b = 12.5006 (18) Å | θ = 3.0–25.6° |
| c = 14.187 (2) Å | µ = 0.94 mm−1 |
| α = 68.991 (2)° | T = 173 K |
| β = 81.829 (2)° | Plate, brown |
| γ = 87.925 (2)° | 0.26 × 0.23 × 0.08 mm |
| V = 1109.6 (3) Å3 |