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Acta Cryst. (2009). E65, m1334 [ doi:10.1107/S1600536809040185 ]
![[mu]](/logos/entities/mu_rmgif.gif)
2-8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylato]cobalt(II)] dihydrate]Abstract: The title compound, {[Co(C14H16N5O3)2]·2H2O}n or [Co(ppa)2]·2H2O}n, where ppa denotes the 8-ethyl-5-oxo-2-(piperazin-1-yl)-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate anion, was synthesized under hydrothermal conditions. The CoII atom (site symmetry 
) exhibits a distorted trans-CoN2O4 octahedral geometry defined by two monodentate N-bonded and two bidentate O,O'-bonded ppa anions. The extended two-dimensional structure is a square grid, which is consolidated by N-H
O hydrogen bonds. The disordered uncoordinated water molecules occupy cavities within the grid.
Online 10 October 2009
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