Received 11 September 2010
In the title compound, [Co(C3H2O4)(C14H12N2)]n, the CoII ion is in a distorted octahedral coordination being chelated by a 2,9-dimethyl-1,10-phenanthroline molecule (dmphen) and two carboxylate groups of two malonate ligands The malonate ligand acts in a bridging mode, forming coordination chains along . - stacking interactions between dmphen ligands [interplanar distances = 3.414 (4) and 3.447 (4) Å] organize the coordination polymers into supramolecular double chains.
Data collection: RAPID-AUTO (Rigaku, 1998); cell refinement: RAPID-AUTO; data reduction: RAPID-AUTO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: GK2299 ).
This project was sponsored by the K. C. Wong Magna Fund in Ningbo University and the Scientific Research Fund of Ningbo University (grant No. XYL09078).
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