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Polymeric copper(II) complexes with 4-formyl-3-methyl-1-phenylpyrazol-5-one hetarylhydrazones: Synthesis and crystal structures |
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| Authors: | L. D. Popov S. I. Levchenkov I. N. Shcherbakov V. V. Minin G. G. Aleksandrov E. A. Ugolkova V. V. Lukov V. A. Kogan |
| Affiliation: | 1. Southern Federal University, Rostov-on-Don, Russia 2. Southern Scientific Center, Russian Academy of Sciences, Rostov-on-Don, Russia 3. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia |
| Abstract: | 4-Formyl-3-methyl-1-phenylpyrazol-5-one quinolin-2-yl-(H2L1) and benzothiazol-2-ylhydrazones (H2L2) were synthesized and studied. Quantum-chemical modeling of possible tautomers of the hydrazones was performed. Copper(II) complexes of the general formula [Cu(HL)(ROH)]Y (R = CH3, C2H5; Y=NO3, ClO4) were obtained and examined by IR and EPR spectroscopy, magnetochemistry, and X-ray diffraction. Additional coordination through the N atom of the pyrazole ring enables the complex molecules to form zigzag polymer chains linked by intermolecular hydrogen bonds. |
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