Abstract
Four new coordination polymers of [Cu(μ-bip)2(N3)2·2H2O]n (1), [Cu(μ-bbd)2(μ4-N3)4]n (2), [Mn(μ-bip)2(NCS)2]n (3) and [Mn(μ-bip)2(N3)2]n (4) were prepared by using the neutral N-donor ligands 1,3-bis(imidazolyl)propane (bip) and 1,4-bis(3,5-dimethylpyrazolyl)butane (bbd), mono-anionic NCS− or N3− ligands and appropriate metal salts of Cu(II) and Mn(II) ions. The results of the X-ray measurements demonstrate that in the crystal structure of 1, 3 and 4 the metal ions adopts MN6 (M=Cu, Mn) an octahedral geometry while, in the structure of 2, the copper(II) ion forms CuN5 trigonal bipyramides. In the polymer 1, 3 and 4 the N3− or NCS− groups are terminally bonded to the metal center and each bip ligand with anti-gauche conformation acts as bridging ligand connecting two metal ions to form a one-dimensional zig-zag chain. Whereas in the polymer 2, the N3 groups adopt so called End-on mode of connection with metal center and the each bbd with anti-anti-anti conformation acts as bridging connecting two copper(II) ions to form a two-dimensional network with a hcb [point symbol (36)] topology. Compounds 1, 3 and 4 are isostructural with each other.
Published Version
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