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Low-dimensional compounds containing cyano groups. IX. Preparation, structure and properties of the [Cu(bpy)2(dca)]CF3SO3 complex

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Abstract

The ionic [Cu(C2N3)(C10H8N2)2](CF3SO3) compound, which contains two crystallographic independent formula units, is formed by [Cu(bpy)2(dca)]+ complex cations (bpy=2,2′-bipyridine, dca=dicyanamide) and uncoordinated CF3SO –3 anions, which are in a staggered conformation. The shapes of coordination polyhedra around both copper atoms, which are fivefold coordinated by two bpy molecules and one dca ligand monodentately coordinated through a cyano N atom in the equatorial plane at a distance of 2.001(3)Å for the first and 1.988(4)Å for the second polyhedron, are distorted trigonal bipyramids. Besides the ionic forces the structure is stabilized by weak C–H...O hydrogen bonds and possible π–π interactions between pyridine rings of bpy molecules. Along with the structural-spectral correlation we discuss the thermal decomposition of the title complex.

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Authors and Affiliations

  1. Department of Inorganic Chemistry,Institute of Chemistry, P.J. Šafárik University, Moyzesova 11, Košice, SK-04154, Slovakia

    Milan Burčák, Ivan Potočňák & Lothar Jäger

  2. Institute of Inorganic Chemistry, Martin-Luther-University,Halle-Wittenberg, Kurt-Mothes-Str. 2, Halle, D-06120, Germany

    Christoph Wagner

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  1. Milan Burčák
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  2. Ivan Potočňák
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  3. Christoph Wagner
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  4. Lothar Jäger
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Burčák, M., Potočňák, I., Wagner, C. et al. Low-dimensional compounds containing cyano groups. IX. Preparation, structure and properties of the [Cu(bpy)2(dca)]CF3SO3 complex. Transition Metal Chemistry 29, 786–791 (2004). https://doi.org/10.1007/s11243-004-9173-3

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