Bis(μ-ferrocene-carboxyl-ato)bis-[aqua--bis(ferrocene-carboxyl-ato)methano-l-erbium(III)] methanol disolvate

Acta Crystallogr Sect E Struct Rep Online. 2012 Jan;68(Pt 1):m6-7. doi: 10.1107/S1600536811051245. Epub 2011 Dec 3.

Abstract

In the centrosymmetric title coordination compound, [Er(2){Fe(C(5)H(5))(C(6)H(4)O(2))}(6)(CH(3)OH)(2)(H(2)O)(2)]·2CH(3)OH, the two Er(III) ions are bridged by two ferrocene-carboxyl-ate anions as asymmetrically bridging ligands, leading to dimeric cores. The Er(III) ion has a distorted dodeca-hedral coordination with six coordinating O atoms derived from the ferrocene-carboxyl-ate ligands and two coordinated O atoms from one water mol-ecule and one methanol mol-ecule. The asymmetric unit comprises a half of the complex mol-ecule and a methanol solvent mol-ecule. Intra-molecular O-H⋯O and C-H⋯O inter-actions occur. In the crystal, mol-ecules are linked by inter-molecular O-H⋯O hydrogen bonds and C-H⋯O as well as C-H⋯π inter-actions.