Acta Cryst. (2005). E61, m2722-m2725  [ doi:10.1107/S1600536805038626 ]

A novel triple-stranded cadmium(II) polymer chain: catena-poly[cadmium(II)--1,2-bis(imidazol-1-yl)ethane-²N³:N^3'-di--1,5-dicyanamido-⁴N¹:N⁵]

Y. Zhang, Z.-H. Wang, Y.-P. Zhang and B.-L. Li

Abstract: In the crystal structure of the title complex, [Cd(C₂N₃)₂(C₈H₁₀N₄)]_n or [Cd(dca)₂(bim)]_n, where dca is dicyanamide and bim is 1,2-bis(imidazol-1-yl)ethane, each Cd^II atom is in a distorted octahedral environment. Four N atoms from four dca ligands occupy the equatorial positions, and two N atoms from two bim ligands occupy the axial positions. Each Cd^II atom is situated at a center of symmetry, and a twofold axis runs through the mid-points of the bim exocyclic C-C bond and the CdCd vector. The structure consists of chains in which neighboring Cd^II atoms are connected through one bim and two end-to-end dca bridges.

Online 30 November 2005

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