Each La3+ ion in )lanthanum(III)]-mu-(2-furancarboxylato-O,O':O')], [L
a(C5H3O3)(3)(H2O)(2)](n), is coordinated to seven O atoms from furanca
rboxylato groups and to two O atoms of water molecules in a distorted
monocapped square-antiprism configuration. The rare earth metal ions a
re bridged by the carboxylate groups to form an infinite two-dimension
al polymeric network.