Acta Cryst. (2005). E61, m2297-m2298  [ doi:10.1107/S1600536805032575 ]

Rerefinement of catena-poly[[tetraaquacobalt(II)--pyrazine] phthalate] in a lower-symmetry space group

S. W. Ng

Abstract: The polymeric title compound, {[Co(C₄H₄N₂)(H₂O)₄](C₈H₄O₄)}_n, when refined in Imm2 from the diffraction intensities originally used for refinement in Immm [Yang, Li, Cao & Yao (2003). Acta Cryst. E59, m961-m963], is an ordered structure whose Co^II atom, pyrazine ligand and phthalate counter-ion lie on special positions. The metal atom and N-heterocycle have mm2 site symmetry and the dianion m site symmetry.

Online 15 October 2005

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