Catena-Poly[[[4-amino-3,5-bis­(pyridin-2-yl)-4H-1,2,4-triazole-κ2N1,N5](di­cyanamido-κN)copper(II)]-μ2-dicyan­amido-κ2N:N']: coordination polymer chains linked into a bilayer by hydrogen bonds and π-π Stacking interactions

Z. Setifi, F. Setifi, M. Saadi, D.-A. Rouag, C. Glidewell

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Abstract

In the title compound, [Cu(C2N3)2(C12H10N6)]n or [Cu(dca)2(abpt)]n, where abpt is 4-amino-3,5-bis(pyridin-2-yl)-H-1,2,4-triazole and dca is the dicyanamide anion, the CuII centre is five-coordinate with an approximately square-pyramidal geometry. One of the two dicyanamide ligands is a terminal ligand, but the other one acts as a μ1,5-bridging ligand between pairs of CuII centres, so generating a one-dimensional coordination polymer. A combination of N - H⋯N and C - H⋯N hydrogen bonds, augmented by π-π stacking interactions, links the coordination polymer chains into a bilayer structure. Comparisons are made with some related CuII complexes containing dca ligands and heteroaromatic co-ligands.

Original languageEnglish
Pages (from-to)359-363
Number of pages5
JournalActa Crystallographica Section C Structural Chemistry
Volume70
Issue number4
DOIs
Publication statusPublished - 1 Apr 2014

Keywords

  • Crystal structure
  • One-dimensional coordination polymer
  • Square-pyramidal CuII
  • 4-amino-3,5-bis­(pyridin-2-yl)-4H-1,2,4-triazole
  • Polynitrile ligands

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