Synthesis, crystal structure, and thermal decomposition of two Co(II) complexes with NNN pyrazolyl type ligand and pseudo-halogen |
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Authors: | S Öz N Yılmaz C Arıcı I Svoboda M A Akay O Atakol |
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Institution: | 1. Faculty of Science and Arts, Department of Chemistry, Ahi Evran University, K?r?ehir, 40100, Turkey 2. Department Chemistry, University of Ankara, Tando?an, Ankara, 06100, Turkey 3. Department of Engineering Physics, University of Hacettepe, Beytepe, Ankara, 06800, Turkey 4. Material Science, Darmstadt Technical University, Darmstadt, 63287, Germany
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Abstract: | The Co(II) complexes I and II were prepared in nonaqueous solvents containing cyanate with pyrazolylpyridine ligands, namely, bis-2,6-(pyrazol-1-yl) pyridine (Pp) and bis-2,6-(3,5-dimethyl-pyrazol-1-yl) pyridine (Dmpp), respectively. These complexes were characterized with elemental analysis, IR spectroscopy, and X-ray diffraction techniques. X-ray diffraction study revealed that complex I was mononuclear and complex II was dinuclear and ionic. The ionic complex II has an octahedral cationic coordination sphere and a tetrahedral anionic coordination sphere. Thermogravimetry results showed that the thermal decomposition is starting with the carbon content of the pyrazolyl rings. |
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