Acta Crystallographica Section C

Crystal Structure Communications

Volume 61, Part 12 (December 2005)

metal-organic compounds

fg1873 scheme

Acta Cryst. (2005). C61, m519-m522 [doi:10.1107/S0108270105033962]

One-dimensional zinc-based coordination polymers incorporating cyanate anions

A. D. Bond and C. J. McKenzie

Abstract: Two one-dimensional zinc-based coordination polymers containing cyanate anions are reported. catena-Poly[sodium [[tricyanatozinc(II)]- [mu] -1,4-diazabicyclo[2.2.2]octane- [kappa] ²N:N']], {Na[Zn(NCO)₃(C₆H₁₂N₂)]}_n, consists of linear [tricyanatozinc(II)]- [mu] -1,4-diazabicyclo[2.2.2]octane strands in which the Zn²⁺ cations adopt trigonal-bipyramidal coordination on sites of $\overline{6}$ m2 point symmetry. Na⁺ cations lie between the strands on sites of $\overline{3}$ m point symmetry, coordinated in a distorted octahedral geometry by six O atoms of the cyanate anions. catena-Poly[[dicyanatozinc(II)]- [mu] -4,4'-bipyridine- [kappa] ²N:N'], [Zn(NCO)₂(C₁₀H₈N₂)]_n, crystallizes in the space group P2₁/n with Z' = 5. The structure consists of zigzag strands formed by Zn²⁺ cations linked via 4,4'-bipyridine. Each Zn²⁺ cation adopts a tetrahedral coordination, with two sites occupied by 4,4'-bipyridine and two cyanate anions completing the coordination sphere. The structure is closely comparable with the thiocyanate and halide analogues [ZnX₂(C₁₀H₈N₂)] (X = NCS, Cl or Br).

Formula: Na[Zn(NCO)₃(C₆H₁₂N₂)] and [Zn(NCO)₂(C₁₀H₈N₂)]


	Structure factor file (CIF format) (21.0 kbytes) Contains datablock I

	Structure factor file (CIF format) (624.0 kbytes) Contains datablock II

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