Abstract

The title compound, [Sr(C5H7O4)2(H2O)2]n, crystallizes with an infinite polymeric network. The layered structure is built up from cross-linked infinite chains of one edge-sharing SrO7(H2O)2 polyhedra. One of the two crystallographically distinct ligands acts by its deprotonated group in bis-bridging-chelating mode and the second involves its two ends in bidentate and monodentate modes, respectively. The inorganic layers are pillared by methyl­ene spacers and form empty channels. Inter­layer hydrogen bonds involve mainly the protonated ends of the ligands as donors.

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