Competing Routes in the Extraction of Lanthanide Nitrates by 1,10-Phenanthroline-2,9-diamides: An Impact of Structure of Complexes on the Extraction

Competing Routes in the Extraction of Lanthanide Nitrates by 1,10-Phenanthroline-2,9-diamides: An Impact of Structure of Complexes on the Extraction

The fact of the fracture of the extraction curve of lanthanides by 1,10-phenanthroline-2,9-diamides is explained in terms of the structure of complexes, solvent extraction data and quantum chemical calculations. The solvent extraction proceeds in two competing directions: in the form of neutral comp...

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Bibliographic Details
Main Authors: Yuri A. Ustynyuk, Nelly I. Zhokhova, Igor P. Gloriozov, Petr I. Matveev, Mariia V. Evsiunina, Pavel S. Lemport, Anton S. Pozdeev, Vladimir G. Petrov, Alexandr V. Yatsenko, Viktor A. Tafeenko, Valentine G. Nenajdenko
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:International Journal of Molecular Sciences
Subjects:
lanthanides
N,O-hybrid ligands
complex
DFT calculations
X-ray diffraction
Online Access:https://www.mdpi.com/1422-0067/23/24/15538
Description
Summary:The fact of the fracture of the extraction curve of lanthanides by 1,10-phenanthroline-2,9-diamides is explained in terms of the structure of complexes, solvent extraction data and quantum chemical calculations. The solvent extraction proceeds in two competing directions: in the form of neutral complexes <b>L</b>Ln(NO<sub>3</sub>)<sub>3</sub> and in the form of tight ion pairs {[<b>L</b>Ln(NO<sub>3</sub>)<sub>2</sub> H<sub>2</sub>O]<sup>+</sup> (NO<sub>3</sub><sup>−</sup>).
ISSN:1661-6596
1422-0067

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