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Acta Cryst. (2012). E68, m6-m7  [ doi:10.1107/S1600536811051245 ]

Bis([mu]-ferrocenecarboxylato)bis[aquabis(ferrocenecarboxylato)methanolerbium(III)] methanol disolvate

J. Liu, Y. Li and D. Li

Abstract: In the centrosymmetric title coordination compound, [Er2{Fe(C5H5)(C6H4O2)}6(CH3OH)2(H2O)2]·2CH3OH, the two ErIII ions are bridged by two ferrocenecarboxylate anions as asymmetrically bridging ligands, leading to dimeric cores. The ErIII ion has a distorted dodecahedral coordination with six coordinating O atoms derived from the ferrocenecarboxylate ligands and two coordinated O atoms from one water molecule and one methanol molecule. The asymmetric unit comprises a half of the complex molecule and a methanol solvent molecule. Intramolecular O-H...O and C-H...O interactions occur. In the crystal, molecules are linked by intermolecular O-H...O hydrogen bonds and C-H...O as well as C-H...[pi] interactions.

Online 3 December 2011

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