Poly[[diaqua(1,10-phenanthroline-κ2N,N′)(μ3-4-sulfonatobenzene-1,2-dicarboxylato-κ4O1:O2,O2′:O4)erbium(III)] dihydrate]

Abstract

The 4-sulfophthalate trianion in the polymeric complex, {[Er(C8H3O7S)(C12H8N2)(H2O)2]·2H2O}n, bridges three water/phenanthroline-coordinated ErIII ions to form a three-dimensional network architecture. The metal atom is further chelated by a carboxylate group and is covalently bonded to a monodentate carboxylate group as well as to a monodentate sulfonate group in a distorted square antiprismatic geometry. The coordinating water molecules and the lattice water molecules, one of which is disordered over two positions [major component 65 (3)%], are hydrogen bonded to the network.