Selective separation of trivalent f-ions using 1,10-phenanthroline-2,9-dicarboxamide ligands in ionic liquids.
نویسندگان
چکیده
1,10-Phenanthroline-2,9-dicarboxamide complexants decorated with alkyl chains and imidazolium cations have been studied for extraction of trivalent f-ions into imidazolium ionic liquids. The dicationic complexants are shown to extract Am over Eu with separation factors >50 and high extraction efficiencies. The different size selectivities for lanthanide ions were observed for these two types of complexants, highlighting the importance of the positive charge in controlling both extraction efficiencies and extraction selectivities.
منابع مشابه
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The conventional concept of selective complexation of actinides with soft donor ligands (either S or N donor) has been modified here through exploiting the concept, "intra-ligand synergism", where a hard donor atom, such as oxygen preferentially binds to trivalent actinides [An(iii)] as compared to the valence iso-electronic trivalent lanthanides [Ln(iii)] in presence of another soft donor cent...
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عنوان ژورنال:
- Dalton transactions
دوره 45 29 شماره
صفحات -
تاریخ انتشار 2016