Competing Routes in the Extraction of Lanthanide Nitrates by 1,10-Phenanthroline-2,9-diamides: An Impact of Structure of Complexes on the Extractionстатья
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Аннотация:The fact of the fracture of the extraction curve of lanthanides by 1,10-phenanthroline-2,9-diamides is explained in terms of the structure of complexes, solvent extraction data and quantumchemical calculations. The solvent extraction proceeds in two competing directions: in the form ofneutral complexes LLn(NO3)3 and in the form of tight ion pairs {[LLn(NO3)2 H2O]+(NO3−)