title: Poly[tetra-μ(1,1)-azido-bis-(μ(2)-pyrimidine-2-carboxyl-ato)tricopper(II)].
abstract: In the title compound, [Cu(3)(C(5)H(3)N(2)O(2))(2)(N(3))(4)](n), one of the Cu(II) atoms lies on an inversion centre and is octa-hedrally coordinated by two bidentate chelating pyrimidine-2-carboxyl-ate ligands and two azide anions, each of which gives an N:N-bridge to the second inversion-related Cu(II) centre in the formula unit. The second Cu(II) atom is five-coordinated with a distorted square-pyramidal coordination sphere comprising a single bidentate chelating pyrimidine-2-carboxyl-ate anion and three azide N anions, two of which doubly bridge centrosymmetric Cu(II) centres, giving a two-dimensional network structure extending parallel to (010).
authors: School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300191, People's Republic of China.
authors: Jiong-Peng
authors: JP
authors: Zhao
authors: Fu-Chen
authors: FC
authors: Liu
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