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    New Energetic Copper(II) Complexes With Pyrazolyl Type Ligands
    (Wiley-V C H Verlag Gmbh, 2011) Öz, Sevi; Svoboda, Ingrid; Kurtaran, Raif; Aksu, Mecit; Sarı, Musa; Kunduracı, Melike; Atakol, Orhan
    Nine Cu-II complexes (I-IX) containing the azide ion and bis-2,6-(pyrazol-1-yl)pyridine (pp), bis-2,6-(pyrazol-1-yl)pyridine (dmpp), and 2-(pyrazol-1-yl)-6-(3,5-dirnethylpyrazol-1-yl)pyridine (mpp), which are derivatives of pyrazolylpyridine, were prepared in nonaqueous medium. These complexes were characterized by elemental analyses and IR spectroscopy. Crystals of one of these complexes [CumppClN(3) (VII)] were prepared in suitable size, and a molecular structure of this complex was obtained with X-ray diffraction method. Complexes were examined by thermogravimetry and differential scanning calorimetry methods. Thermal decomposition was observed in complexes including two azide groups similar to that seen in explosives. In the complexes containing one azide group, formation of the Cu-1 complexes was observed after thermal decomposition of the azide group.
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    Synthesis, characterization, crystal structure, magnetic studies of a novel polymeric zig-zag chain copper (II) complex
    (Elsevier Science Sa, 2014) Yardan, Alper; Yahşi, Yasemin; Kara, Hülya; Karahan, Ahmet; Durmuş, Sefa; Kurtaran, Raif
    A single crystal of copper (II) complex (1) has been synthesized and its crystal structure has been determined by single crystal X-ray diffraction analysis and characterized by elemental analyses, IR spectroscopy, thermal analysis, H-1 NMR and C-13 NMR spectroscopy. The complex crystallizes in orthorombic space group Pnma, with unit cell dimensions a = 9.8944, b = 25.2972, c = 7.4457 angstrom, ss = 90 degrees. Structural analysis of (1) shows that the Schiff base ligand coordinates toward one metal atom in a pentadentate mode and each Cu atom is six-coordinated. The aliphatic oxygen atom of Schiff base ligand links the [CuL] moieties and creates polymeric zig-zag chain structure. In addition, magnetic susceptibilities for complex (1) have been measured over the temperature range 2-300 K and the magnetic parameters have been determined with fitting procedure. Magnetic measurements on (1) reveal the presence of antiferromagnetic exchange interactions between Cu(II) ions in the dimeric unit via bridging oxygen atoms of pentadentate Schiff base ligand. (c) 2014 Elsevier B.V. All rights reserved.
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    Two New Co(II) Complexes with NNN Type Pyrazol Ligands
    (Int Union Crystallography, 2010) Atakol, Orhan; Öz, Sevi; Svoboda, Ingrid; Durmuş, Sefa; Kurtaran, Raif; Arıcı, Cengiz
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