Bisμ-2-(4-hy­droxy­phen­yl)acetato-κ3 OO′:O;κ3 O:OO′-bis­{aqua­(44′-bipyridine-κN)2-(4-hy­droxy­phen­yl)acetato-κ2 OO′samarium(III)} monohydrate

摘要

The dinuclear title complex, [Sm2(C8H7O3)6(C10H8N2)2(H2O)2]·H2O, contains two Sm^III atoms, six deprotonated p-hy­droxy­phenyl­acetic acid (PAA) mol­ecules, two 4,4′-bipyridine (bipy) mol­ecules, two coordinated water mol­ecules and one solvent water molecule. Each Sm^IIIion is nine-coordinated by seven O atoms from four PAA ligands, one water O atom and one N atom from a bipy ligand in a distorted geometry. The PAA ligands are coordinated to the Sm^III ion in bridging and bridging tridentate modes. The asymmetric unit also contains one uncoordinated water mol­ecule. The occurrence of numerous O—H⋯O and O—H⋯N hydrogen bonds involving coordinated and non-coordinated water mol­ecules builds up an intricate three-dimensional network.