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One-dimensional zinc-based coordination polymers incorporating cyanate anions


, : One-dimensional zinc-based coordination polymers incorporating cyanate anions. Acta Crystallographica. Section C, Crystal Structure Communications 61(Pt 12): M519-M522

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-kappa2N: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 -6m2 point symmetry. Na+ cations lie between the strands on sites of -3m point symmetry, coordinated in a distorted octahedral geometry by six O atoms of the cyanate anions. catena-Poly[[dicyanatozinc(II)]-mu-4,4'-bipyridine-kappa2N:N'], [Zn(NCO)2(C10H8N2)]n, crystallizes in the space group P2(1)/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).

US$19.90

PMID: 16330836

DOI: 10.1107/S0108270105033962


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