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Neutral organophosphorus ligands as a molecular lab for simultaneous detecting of Ag(I) ions
- Publication Year :
- 2021
-
Abstract
- Study of the liquid-liquid extraction of Ag(I) ions with a series of phosphine oxides (trioctylphosphine, tributylphosphine, triphenylphosphine, and octyl(phenyl)-N,N-diisobutylcarbamoylmethylphosphine oxide) and phosphorus-containing calix[4]arene by the well-known method of slope analysis and determination of the process parameters are presented employing CHCl3 and an ionic liquid, 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C1C4im+][Tf2N−]) as diluents. The ligand effect on the complexation properties of Ag(I) is quantitatively assessed. The silver-containing extracts are examined by 1H, 31P NMR as well as by SEM and TEM approaches in order to viewing the cation coordination and ligands’ binding mode inside, in the organic phase solution at micro-scale level. A conclusion can be made about aggregation in micelle formation of the calix[4]arene under study upon extraction of Ag(I) ion. A method employing thermogravimetric analysis (TGA) is also exploited for the determination of the solubility of CMPO ligand diluted in [C1C4im+][Tf2N−]. Final conclusions are given highlighting the role of the diluent, molecular or ionic, in complexation processes and selectivity involving ligands with P=O donor group and various metal s-, p-, d- and f-cations. The Ag(I) ions have shown the best extraction behavior compared to the other ions in the +1 oxidation state. Indeed, the calix[4]arene derivative bearing four P=O functions at the lower rim, shows strongly enhanced extraction as well as pronounced separation abilities towards lanthanoids in an ionic liquid environment.
- Subjects :
- Inorganic chemistry
Ionic bonding
Extraction
02 engineering and technology
010402 general chemistry
01 natural sciences
Micelle
Separation
chemistry.chemical_compound
Materials Chemistry
Physical and Theoretical Chemistry
Triphenylphosphine
Spectroscopy
Ligand
Trioctylphosphine
021001 nanoscience & nanotechnology
Condensed Matter Physics
Atomic and Molecular Physics, and Optics
Ionic liquids
0104 chemical sciences
Electronic, Optical and Magnetic Materials
chemistry
Silver ion
Ionic liquid
Tributylphosphine
0210 nano-technology
Phosphine oxides
Phosphine
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....4c6f4c2c5e5869715d9d7adef3958fad