title: Poly[μ(2)-aqua-aqua-μ(4)-pyridine-2,4-dicarboxyl-ato-strontium].
abstract: In the title polymeric complex, [Sr(C(7)H(3)NO(4))(H(2)O)(2)](n), the Sr(II) atom is eight-coordinated by four O atoms and one N atom of four pyridine-2,4-dicarboxyl-ate (py-2,4-dc) ligands and three O atoms of three coordinated water mol-ecules in a dodeca-hedral geometry. These units are connected via the carboxyl-ate O atoms and water mol-ecules, building polymeric layers parallel to (100). In the crystal structure, non-covalent inter-actions consisting of O-H⋯O hydrogen bonds and π-π stacking inter-actions [centroid-centroid distances = 3.862 (17) and 3.749 (17) Å] connect the various components, forming a three-dimensional structure.
authors.forename: Janet
authors.initials: J
authors.lastname: Soleimannejad
authors.forename: Yaghoub
authors.initials: Y
authors.lastname: Mohammadzadeh
authors.forename: Hossein
authors.initials: H
authors.lastname: Aghabozorg
authors.forename: Zohreh
authors.initials: Z
authors.lastname: Derikvand