Extraction of Cd2+and Am3+ Ions into organic and fluorous solvents with a TPEN chelating agent bearing a fluoroalkyl substituent
Introduction of polyfluorinated alkyl groups into TPEN (N,N,N',N'- tetrakis(2-pyridylmethyl)ethylenediamine) derivatives provides soft metal ion extracting agents with high acid tolerance. The TPEN derivative bearing a pentafluoropropoxy substituent efficiently extracts Cd2+ and Am 3+ into organic and fluorous solvents.