title: Poly[[tetraaqua(mu7-hydrogen dichloromethylenebisphosphonato)(mu5-hydrogen dichloromethylenebisphosphonato)tribarium(II)] monohydrate].
abstract: The title compound, [[Ba(3)(CHCl(2)O(6)P(2))(2)(H(2)O)(4)].H(2)O](n) or [[Ba(3)(Cl(2)CP(2)O(6)H)(H(2)O)(4)].H(2)O](n), is two-dimensional. The asymmetric unit contains three independent Ba(2+) atoms, two chelating and bridging Cl(2)CP(2)O(6)H(3-) ligands and four aqua ligands, connected in layers parallel to the (100) plane. There are pores between the layers in the direction of the b axis filled with lattice water molecules.
authors.affiliation: University of Joensuu, Department of Chemistry, PO Box 111, FIN-80101 Joensuu, Finland. mervi.kontturi@joensuu.edu
authors.forename: Mervi
authors.initials: M
authors.lastname: Kontturi
authors.forename: Sirpa
authors.initials: S
authors.lastname: Peräniemi
authors.forename: Jouko J
authors.initials: JJ
authors.lastname: Vepsäläinen
authors.forename: Markku
authors.initials: M
authors.lastname: Ahlgrén