A New Imide-pyrazine Zinc(II) Binuclear Complex; In SituSynthesis and Crystal Structure Determination

چکیده مقاله

new zinc(II) binuclear complex, [Zn2(μ-DPzCA)(2-MPzCI)Cl3] (1)(where DPzCA is N-(2-pyrazylcarbonyl)-2-pyrazinecarboxamidate anion and 2-MPzCI is methyl pyrazine-2-carboximidate), was synthesized from the reactionof ZnCl2.7H2O and 2-cyanopyrazine in methanolic solution at 65 °C. Thiscomplex was thoroughly characterized by elemental analysis (CHN-O), IR, UVVis,^1H NMR spectroscopy and its structure have been determined by the singlecrystalX-ray diffraction. The spectroscopic investigations and X-ray structuralanalysis indicated that by methanolysis and in the presence of ZnCl2.7H2O saltthe 2-cyanopyrazine ligand converts to methyl pyrazine-2-carboximidate.Furthermore, the bis(2-pyrazinecarbonyl)amidate anionic ligand have beenprepared from 2-cyanopyrazine in the presence of ZnCl2.7H2O salt in methanolicsolution.