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Acta Cryst. (2009). E65, m1572-m1573 [ doi:10.1107/S1600536809046091 ]
![[mu]](/logos/entities/mu_rmgif.gif)
-6-hydroxy-1-naphthoato)bis[(6-hydroxy-1-naphthoato)(1,10-phenanthroline)europium(III)] dihydrateAbstract: The title complex, [Eu2(C11H7O3)6(C12H8N2)2]·2H2O, has a centrosymmetric binuclear cage structure in which the two EuIII ions are both nine-coordinated and bridged by 6-hydroxy-1-naphthoate (L) ligands, with an Eu
Eu separation of 4.1594 (4) Å. The remaining coordination sites are occupied by two N atoms from one 1,10-phenanthroline (phen) and two O atoms from an L ligand. The six 6-hydroxy-1-naphthoate groups coordinate each EuIII atom in three different ways, namely 2-![[eta]](/logos/entities/eta_rmgif.gif)
1:1-bridging, 1-1:1-chelating, and 2-1:2-chelating/bridging modes. Adjacent discrete dinuclear units are linked into a two-dimensional sheet parallel to (011) by intermolecular O-HO hydrogen-bonding interactions. The sheets are cross-linked by water molecules, forming a three-dimensional network. In addition, ![[pi]](/logos/entities/pi_rmgif.gif)
- stacking interactions, with a centroid-centroid separation of 3.547 (2) Å are observed.
Online 14 November 2009
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