The product of the reaction between nickel acetilacetonate and pyridine-2-one in molar ratios of 1 : 4 and 1 : 2 in acetonitrile was the complex [Ni(acac)2(Hhp)2]. The reaction was carried out at room temperature for a few days, giving a dark green suspension. Then the green suspension was heated at 80 °C for one hour. Upon heating, the color of the suspension changes to olive green. IR spectrum and CHN analysis confirm the formation of [Ni(acac)2(Hhp)2] complex.
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