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Experiment 10 Title: Preparation of bis(acetylacetonato)copper(II) Objectives: * To synthesise Bis (acetylacetanato) copper (II) compound by using Copper (II) Nitrate as starting material. * To recognize the nature of the ligand * To learn the technic of crystallization. Introduction: The four most common techniques for the bulk purification of crude organic compounds on a laboratory scale are recrystallization, distillation, extraction, and column chromatography. Numerous other methods are used somewhat less frequently (for example, sublimation) while still others are generally useful only for small scale applications (i.e., preparative gas chromatography). Of the methods useful in the purification of organic solids, recrystallization is usually the most convenient when it is feasible. In chemistry, recrystallization is a procedure for purifying compounds. A typical situation is that a desired compound X is contaminated by a small amount of compound Y. A chemist can prepare a saturated solution of the mixture X+Y in a warm solvent and subsequently lower...

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