Acta Cryst. (2007). E63, m544-m546  [ doi:10.1107/S160053680700205X ]

A monoclinic polymorph of catena-poly[[[diaqua(pyridine-2-carboxamide-²N¹,O)copper(II)]--sulfato-²O:O'] monohydrate]

H.-Z. Xie and W.-J. Pan

Abstract: The title crystal structure, {[Cu(SO₄)(C₆H₆N₂O)(H₂O)₂]·H₂O}₆, is a monoclinic polymorph of the previously reported triclinic structure [Sieron & Bukowska-Strzyzewska (1999). Acta Cryst. C55, 491-494] in which sulfate ligands bridge six-coordinate Cu atoms, generating an extended one-dimensional chain structure along [010]. Neighboring chains are connected by N-HO(sulfate) hydrogen bonds into ladders, which are further connected into two-dimensional layers perpendicular to the [100] direction by N-HO(water) and O(water)-HO hydrogen bonds. These layers are connected by O-HO hydrogen bonds into a three-dimensional network.

Online 24 January 2007

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