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Acta Cryst. (2004). E60, m14-m16 [ doi:10.1107/S1600536803026400 ]
![[kappa]](/logos/entities/kappa_rmgif.gif)
O,2O,3O-hexakis-![[mu]](/logos/entities/mu_rmgif.gif)
-chloroacetato-1:24O:O';2:34O:O';1:34O:O'-3-oxo-triiron(III) nitrate trihydrateAbstract: The title compound, [Fe3O(C2H2ClO2)6(H2O)3]NO3·3H2O, contains an FeIII trimeric cation in which the three FeIII ions are at the corners of a slightly distorted triangle with an O atom in the centre. Two monochloroacetate ligands bridge each pair of FeIII ions and a water molecule coordinates each FeIII ion at the apex, opposite to the central O atom. Hence, the FeIII ions are surrounded by distorted oxygen octahedra. The distances between the FeIII ions and the central O atoms are considerably shorter than those between the FeIII ions and the other coordinated O atoms. The trimeric cations form a three-dimensional connected network via hydrogen-bonding interactions to extra-cluster water molecules and nitrate anions.
Online 6 December 2003
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