S. Ayyappan, G. Diaz de Delgado, A. K. Cheetham, G. Férey and C. N. R. Rao
The hydrothermal synthesis and single crystal XRD characterization of a three-dimensional open-framework lead(II) carboxyethylphosphonate, Pb3(O2CCH2CH2PO3)2, is described; the structure contains PbO3, PbO4 and PbO5 polyhedra, each with stereochemically active lone pairs of electrons, and exhibits several types of channels.