Effect of phase modifiers TBP and iso-decanol on the extraction and complexation of Eu3+ with CMPO
| Autor: | Arijit Sengupta, Mallekav S. Murali |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Phosphine oxide
Branching fraction Magnetic dipole transition Stereochemistry Process Chemistry and Technology General Chemical Engineering Extraction (chemistry) Filtration and Separation 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Phosphate 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Phase (matter) Physical chemistry Quantum efficiency 0210 nano-technology Stoichiometry |
| Zdroj: | Separation Science and Technology. 51:2153-2163 |
| ISSN: | 1520-5754 0149-6395 |
| DOI: | 10.1080/01496395.2016.1201508 |
| Popis: | The effect of tri-n-butyl phosphate (TBP) and iso-decanol as phase modifiers on the complexation of Eu3+ with octyl-phenyl N,N-diisobutyl carbamoyl methyl phosphine oxide (CMPO) was studied. On an increase of iso-decanol the extraction efficiency of Eu3+ decreases. The metal–ligand stoichiometry was found to be 1:3. The Eu complex of CMPO–TBP was more symmetric compared to CMPO–iso-decanol. The Eu3+ complex exhibited D3h and C3h symmetry for 30% and 5% iso-decanol, while that for TBP was C6v. The radiative, non-radiative life time, electric and magnetic dipole transition probabilities, branching ratio, quantum efficiency etc. were evaluated. The covalency between Eu3+ and CMPO is as follows: CMPO–TBP < CMPO-5% iso-decanol < CMPO-30% iso-decanol. |
| Databáze: | OpenAIRE |
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