Title of article :
Crystal structure of catena-poly[gold(I)-μ-cyanido-[diaquabis(2-phenylpyrazine)iron(II)]-μ-cyanido] dicyanidogold(I)]
Author/Authors :
Kucheriv, Olesia I. Department of Chemistry - Taras Shevchenko National University of Kyiv, Ukraine , Barakhtii, Diana D. Department of Chemistry - Taras Shevchenko National University of Kyiv, Ukraine , Malinkin, Sergey O. Department of Chemistry - Taras Shevchenko National University of Kyiv, Ukraine , Shova, Sergiu Department of Inorganic Polymers - "Petru Poni" Institute of Macromolecular Chemistry - Romanian Academy of Science, Romania , Gural'skiy, Il'ya A. Department of Chemistry - Taras Shevchenko National University of Kyiv, Ukraine
Abstract :
In the title polymeric complex, {[Fe(CN)2(C10H8N2)2(H2O)2][Au(CN)2]}n, the FeII ion, which is located on a twofold rotation axis, has a slightly distorted FeN4O2 octahedral geometry. It is coordinated by two phenylpyrazine molecules, two water molecules and two dicyanoaurate anions, the Au atom also being located on a second twofold rotation axis. In the crystal, the coordinated dicyanoaurate anions bridge the FeII ions to form polymeric chains propagating along the b-axis direction. In the crystal, the chains are linked by Owater—H⋯Ndicyanoaurate anions hydrogen bonds and aurophillic interactions [Au⋯Au = 3.5661 (3) Å], forming layers parallel to the bc plane. The layers are linked by offset π–π stacking interactions [intercentroid distance = 3.643 (3) Å], forming a supramolecular metal–organic framework.
Keywords :
crystal structure , polymeric complex , iron(II) complex , 2-phenylpyrazine , supramolecular metal–organic framework , offset π–π interactions , dicyanoaurate , aurophillic interactions
Journal title :
Acta Crystallographica Section E: Crystallographic Communications
