E. S. Safiullina, I. A. Nikovskiy, Yu. V. Nelyubina
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引用次数: 0
Abstract
New cobalt(II) complex [Co(L)2](ClO4)2 is synthesized by the reaction of 2,6-bis(pyrazol-3-yl)pyridine (L) containing capable of deprotonating hydroxy groups with cobalt(II) perchlorate hexahydrate in deuterated methanol in a tube for NMR spectroscopy. A possibility of the new complex to undergo in situ reversible deprotonation under the action of 1,8-diazabicyclo[5.4.0]undec-7-ene is demonstrated. As found by the approach based on an analysis of changing chemical shifts in the 1H NMR spectra with temperature, the synthesized complex exists in the high-spin state both before and after complete deprotonation in a temperature range of 200–325 K. The X-ray diffraction (XRD) data of the completely deprotonated complex [Co(L-2H)2](DBU+H)2 (CIF file CCDC no. 2448321) indicate that the high-spin state of the complex is retained in the crystal as well.
期刊介绍：
Russian Journal of Coordination Chemistry is a journal that publishes reviews, original papers, and short communications on all aspects of theoretical and experimental coordination chemistry. Modern coordination chemistry is an interdisciplinary science that makes a bridge between inorganic, organic, physical, analytical, and biological chemistry.
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