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      Coordination polymers and isomerism; a study using silver(I) and a ∏-stacked ligand

      Caradoc-Davies, Paula L.; Hanton, Lyall R.; Henderson, William
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      Henderson coordination polymers.pdf
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      DOI
       10.1039/b104284j
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      Caradoc-Davies, P. L., Hanton, L. R., & Henderson, W. (2001). Coordination polymers and isomerism; a study using silver(I) and a ∏-stacked ligand. Journal of Chemical Society Dalton Transactions, 2749-2755.
      Permanent Research Commons link: https://hdl.handle.net/10289/3389
      Abstract
      The ligand 2,5-bis(2-pyridylmethylsulfanylmethyl)pyrazine (L) was prepared by the base coupling of 2-(sulfanylmethyl)pyridine and 2,5-bis(chloromethyl)pyrazine. This new ligand was treated with AgClO₄ in a 1 1 metal-to-ligand ratio and with AgNO₃in a 2 1 metal-to-ligand ratio to give coordination polymers. The crystal structures of {[Ag(L)]ClO₄}∞ ( 1) and {[Ag₂(L)](NO₃)₂}∞ ( 2) were determined. The Ag(I) ions in the one-dimensional polymeric chains of 1 adopted square-pyramidal geometries with the pyridine and pyrazine N donors coordinated in an extremely bent fashion. The structure of 2 revealed two isomeric polymer chains in the one crystal forming a single supramolecular array. The isomeric polymers differed in the donor atoms about the Ag(I) ions and in the arrangement of adjacent ligands along the chain. A feature of both structures was that L adopted a three-layer ∏-stacked arrangement.
      Date
      2001
      Type
      Journal Article
      Publisher
      ROYAL SOC CHEMISTRY
      Rights
      This is an author’s accepted version of an article published in the Journal of Chemical Society Dalton Transactions. Used with permission.
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      • Science and Engineering Papers [3019]
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