New iron(III) nitrate hydrates: Fe(NO3)3·xH2O with x = 4, 5 and 6

Schmidt, H.; Asztalos, A.; Bok, F.; Voigt, W.

doi:10.1107/S0108270112015855

Figure 1
(a) The asymmetric unit and symmetry-related atoms of Fe(NO₃)₃·6H₂O. Displacement ellipsoids are drawn at the 50% probability level. [Symmetry codes: (i) -y + 1, -z + 1, -x + 1; (ii) -z + 1, -x + 1, -y + 1; (iii) y, z, x; (iv) z, x, y; (v) -x + 1, -y + 1, -z + 1; (vi) x, -y + 1, -z + $[{1\over 2}]$ .] (b) The [Fe(H₂O)₆]⁺ octahedron with hydrogen bonds (dashed lines) to nitrate anions (triangles) in iron(III) nitrate hexahydrate.