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Low-dimensional compounds containing cyanido groups. XXIX. Crystal structures, spectral and magnetic properties of five [Cu(L)2X]C(CN)3 complexes (L = 2,2′-bipyridine or 1,10-phenanthroline; X = Cl−, Br− or CH3COO−)

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Abstract

Five new ionic [Cu(L)2X]C(CN)3 (L = 2,2′-bipyridine (bpy) or 1,10-phenanthroline (phen), X = Cl−, Br− or CH3COO−) complexes: [Cu(bpy)2Cl]C(CN)3 (1), [Cu(phen)2Cl]C(CN)3·H2O (2), [Cu(bpy)2Br]C(CN)3·H2O (3), [Cu(phen)2Br]C(CN)3·0.5H2O·0.5EtOH (4) and [Cu(phen)2Br0.7(CH3COO)0.3]C(CN)3·0.5H2O (5), have been synthesized and characterized by IR and UV–Vis spectroscopy. X-ray structural analysis revealed that the structures of all discussed compounds consist of [Cu(L)2X]+ complex cations and uncoordinated C(CN) −3 counteranions; water molecules were found in 2, 3, 4 and 5; a molecule of ethanol was found in 4, too. The shapes of coordination polyhedra around the copper atoms, which are pentacoordinated by two bidentate bpy or phen molecules and Cl−, Br− or CH3COO− ligands monodentately coordinated in the equatorial plane, are distorted trigonal bipyramids. Structures of 1–5 are stabilized by weak π–π interactions and by hydrogen bonds. Magnetic properties of complexes 1–4 are characterized by the presence of weak antiferromagnetic exchange couplings.

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Acknowledgments

This work was supported by the Slovak Research and Development Agency under Contract No. APVV–0132–11 and VEGA grant Nos. 1/0598/14 and 1/0145/13. The financial support from ERDF (European Regional Development Fund) under the Contract Nos. ITMS26220120005 and ITMS26220220186 is acknowledged.

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Authors and Affiliations

  1. Department of Inorganic Chemistry, Institute of Chemistry, P.J. Šafárik University in Košice, Moyzesova 11, SK-041 54, Kosice, Slovakia

    Katarína Petrovič & Ivan Potočňák

  2. Department of Condensed Matter Physics, Institute of Physics, P.J. Šafárik University in Košice, Park Angelinum 9, SK-041 54, Kosice, Slovakia

    Katarína Ráczová & Erik Čižmár

  3. Department of Medical and Clinical Biophysics, Faculty of Medicine, P.J. Šafárik University in Košice, Tr. SNP 1, SK-04011, Kosice, Slovakia

    Marián Petrovič

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  1. Katarína Petrovič
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  2. Ivan Potočňák
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  3. Katarína Ráczová
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Correspondence to Ivan Potočňák.

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Petrovič, K., Potočňák, I., Ráczová, K. et al. Low-dimensional compounds containing cyanido groups. XXIX. Crystal structures, spectral and magnetic properties of five [Cu(L)2X]C(CN)3 complexes (L = 2,2′-bipyridine or 1,10-phenanthroline; X = Cl−, Br− or CH3COO−). Transition Met Chem 40, 541–553 (2015). https://doi.org/10.1007/s11243-015-9947-9

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