LOW-TEMPERATURE P-31 NMR-STUDY OF THE EXTRACTION OF LANTHANUM WITH 2-ETHYLHEXYL PHENYLPHOSPHONIC ACID

Authors
OTU EO WESTLAND AD
Citation
Eo. Otu et Ad. Westland, LOW-TEMPERATURE P-31 NMR-STUDY OF THE EXTRACTION OF LANTHANUM WITH 2-ETHYLHEXYL PHENYLPHOSPHONIC ACID, Solvent extraction and ion exchange, 14(4), 1996, pp. 567-583
Citations number
24
Categorie Soggetti
Chemistry
Journal title
Solvent extraction and ion exchange → ACNP
ISSN journal
07366299
Volume
14
Issue
4
Year of publication
1996
Pages
567 - 583
Database
ISI
SICI code
0736-6299(1996)14:4<567:LPNOTE>2.0.ZU;2-G
Abstract
The use of nuclear magnetic resonance (NMR) spectroscopy to elucidate the structure of complexes formed in liquid-liquid extraction is repor ted. P-31 spectral information provided substantive evidence for the s tructural difference of the isolated solid complex and the complex in solution. Solvent effect exists for the P-31 chemical shift of the lan thanum-2-ethylhexyl phenylphosphonate in n-hexane, toluene and tetrahy drofuran, as well as in the extractability of lanthanum from aqueous p erchloric acid solution.