The new heterobimetallic complex [{LaEu(oda)(3)(H2O)(3).-5H(2)O}n] (od
a = -O2CCH2OCH2CO2-) has been synthesized and structurally characteriz
ed. Three tridentate oda ligands are coordinated to the smaller Eu-III
cation, while six adjacent outer carboxylate O atoms and three metal-
bound water O atoms are bonded to the larger La-III cation. The struct
ure consists of a three-dimensional network with the metal centers bri
dged by oda carboxylate groups, with Eu...La separations of 6.95 (1) A
ngstrom.