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- Title
Phosphorous-Based Pillar[5]arenes for Uranyl Extraction.
- Authors
Bing Bai; Yuyu Fang; Quan Gan; Yuanyou Yang; Lihua Yuan; Wen Feng
- Abstract
One phosphine oxide-based pillar[5]arene 1a and two novel phosphorous-based pillar[5]arenes 1b and 1c were synthesized for use as extractants in solvent extraction of UO2+2 . The results from host-guest interactions pertinent to the extracted complexes of 1a--1c revealed a significant difference in complexation capability between 1a and 1b (or 1c) by using 1H NMR, 31P NMR and FT-IR techniques. The extraction of UO2+2 in separate extraction system and in simulated nuclear industry effluent containing 12 competing ions demonstrated the superior efficiency and selectivity of 1a towards UO2+2 over other cations in acidic feed. Log-log plot analysis indicated the 1:1 stoichiometry (ligand/metal) for the extracted complex formed between the ligand and UO2+2.
- Subjects
PHOSPHINE oxides; HOST-guest chemistry; URANYL compounds; PHOSPHORUS compound synthesis; SOLVENT extraction; STOICHIOMETRY
- Publication
Chinese Journal of Chemistry, 2015, Vol 33, Issue 3, p361
- ISSN
1001-604X
- Publication type
Article
- DOI
10.1002/cjoc.201400899