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β-二酮冠醚,具有多效极性部位,属于多配位基型,选择性络合金属离子能力强。例如在冠醚的孔腔和环外的β-二酮,能分别与镧系元素和碱金属、碱土金属络合。新型双β-二酮冠醚,分析其结构可能会有更特殊的性能。一般多配位基冠醚的合成,需要在高度稀释条件下,长时间搅拌反应制得,而且产率不高;冠醚环增大,合成更困难。作者按下式:
β-diketone crown ether, with a multi-polar site, belonging to the multi-ligand type, the ability to selectively complex metal ions. For example, the β-diketone in the cavity of the crown ether and outside the ring can complex with lanthanides and alkali metals and alkaline earth metals, respectively. The new double-diketone crown ether, the analysis of its structure may have more special properties. In general, the synthesis of multidentate crown ethers needs to be stirred for a long time under highly diluted conditions, and the yield is not high; the crown ether ring increases and the synthesis is more difficult. Author according to the following formula: