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以二氯化钯为原料,在碱性条件下有效地制备了乙酰丙酮钯(II),用无水乙醇提纯后产率达到92.2%。通过元素分析、电子光谱、IR、MS、1HNMR,进一步确证了所制得样品的结构与性质。结果表明:乙酰丙酮钯属于低自旋的平面正方型配合物,在反应动力学上是稳定的;配合物中螯合环和离域e键的形成使Pd-O键加强,配合物更稳定。
Palladium (II) acetylacetonate was prepared from palladium (Ⅱ) chloride under basic condition, yielding 92.2% after purification with absolute ethanol. The structure and properties of the obtained samples were further confirmed by elemental analysis, electronic spectra, IR, MS and 1HNMR. The results show that palladium (Ⅱ) acetylacetonate belongs to the low-spin square planar complex and is stable in reaction kinetics. The formation of chelating rings and delocalized e-bonds in the complex enhances the Pd-O bond and makes the complex more stable .