EXTRACTION AND SPECTROSCOPIC STUDIES OF HYDROGEN BONDING COMPLEXES OF tris(ACETYLACETONATO)ALUMINUM(III) WITH 3,5-DICHLOROPHENOL FOR A NOVEL SYNERGISM
EXTRACTION AND SPECTROSCOPIC STUDIES OF HYDROGEN BONDING COMPLEXES OF tris(ACETYLACETONATO)ALUMINUM(III) WITH 3,5-DICHLOROPHENOL FOR A NOVEL SYNERGISM
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三(乙酰丙酮)铝(III)与3,5-二氯苯酚氢键配合物的萃取和光谱研究以实现新型协同作用
DOI：
10.1080/07366299508918315
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发表时间：
1995
影响因子：
2
通讯作者：
R. Shiga
中科院分区：
文献类型：
--
作者：
H. Imura;A. Oshiro;R. Shiga
摘要在庚烷和四氯化碳中加入3,5-二氯苯酚（DCP），观察了乙酰丙酮（Hacac）对铝（III）的协同萃取作用。这种现象是由于Al(acac)3与DCP形成缔合配合物所致。通过萃取平衡分析，确定了其缔合物为Al(acac)3·n(DCP) (n=1-3)，并确定了其总缔合常数（βass,n）。红外光谱和核磁共振氢谱证实了DCP与Al(acac)3的氢键作用。红外光谱测定的βass，n值与分布法测定的值吻合较好。通过比较Al(acac)3与部分金属(III)-acac螯合物的βass，n，讨论了三（乙酰丙酮）-金属(III)-acac螯合物的氢键能力与结构的关系。
ABSTRACT Synergistic enhancement of the extraction of aluminium(III) with acetylacetone (Hacac) in heptane and carbon tetrachloride was observed by the addition of 3,5-dichlorophenol (DCP).This phenomenon is due to the formation of association complexes of Al(acac)3 with DCP. From the extraction-equilibrium analysis, the association complexes were found to be Al(acac)3·n(DCP) (n=1-3) and the overall association constants (βass,n) were determined. The hydrogen bonding of the hydroxyl hydrogen of DCP with Al(acac)3 was evidenced by IR and 1H NMR spectroscopy. The βass,n values determined by IR were in good agreement with those’ obtained by the distribution method. The relationship between the hydrogen bond ability of tris(acetylacetonato)-metals(III) and their structure was discussed by comparison of βass,n for Al(acac)3 with those for some metal(III)-acac chelates studied so far.