Osmotic coefficients of aqueous solutions of lanthanide salts are described using the binding mean spherical approximation (BIMSA) model based on the Wertheim formalism for association. The lanthanide(III) cation and the co-ion are allowed to form a 1-1 ion pair. Hydration is taken into account by introducing concentration-dependent cation size and solution permittivity. An expression for the osmotic coefficient, derived within the BIMSA, is used to fit data for a wide variety of lanthanide pure salt aqueous solutions at 25 degrees C. A total of 38 lanthanide salts have been treated, including perchlorates, nitrates, and chlorides. For most solutions, good fits could be obtained up to high ionic strengths. The relevance of the fitted parameters has been discussed, and a comparison with literature values has been made (especially the association constants) when available.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/jp0450991 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
DFT-Based Polarizable Ion Models for Molten Rare-Earth Chlorides: From Lanthanum to Europium.
J Phys Chem B
January 2025
Sorbonne Université, CNRS, Physicochimie des Électrolytes et Nanosystèmes Interfaciaux, F-75005 Paris, France.
We developed a systematic polarizable force field for molten trivalent rare-earth chlorides, from lanthanum to europium, based on first-principle calculations. The proposed model was employed to investigate the local structure and physicochemical properties of pure molten salts and their mixtures with sodium chloride. We computed densities, heat capacities, surface tensions, viscosities, and diffusion coefficients and disclosed their evolution along the lanthanide series, filling the gaps for poorly studied elements, such as promethium and europium.
View Article and Find Full Text PDFPreclinical comparison of (radio)lanthanides using mass spectrometry and nuclear imaging techniques: biodistribution of lanthanide-based tumor-targeting agents and lanthanides in ionic form.
Eur J Nucl Med Mol Imaging
December 2024
Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland.
Purpose: With the growing interest in exploring radiolanthanides for nuclear medicine applications, the question arises as to whether they are generally interchangeable without affecting a biomolecule's pharmacokinetic properties. The goal of this study was to investigate similarities and differences of four (radio)lanthanides simultaneously applied as complexes of biomolecules or in ionic form.
Methods: Inductively coupled plasma mass spectrometry (ICP-MS) was employed for the simultaneous detection of four lanthanides (Ln = lutetium, terbium, gadolinium and europium) in biological samples.
Development of Neural Network Potentials for Studying Chemical Behaviors of La/Nd Ions in Molten LiCl-KCl-CsCl in Combination with Raman Spectroscopy.
J Phys Chem B
November 2024
Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
The chemistry of molten salts has attracted great research interest owing to their wide applications in diverse fields. In the pyrochemical reprocessing of spent nuclear fuel or molten salt nuclear reactors, lanthanide elements as the principal fission products bring about changes in the composition and properties of molten salts. Herein, we report a comprehensive study on the coordination chemistry of the representative trivalent lanthanide ions (La/Nd) in LiCl-KCl-CsCl using a multiscale strategy combining Raman spectroscopy, deep learning, and large-scale molecular dynamics (MD) simulations.
View Article and Find Full Text PDFBreaking Symmetry for SHG Response: Lanthanide Acetate Crystals via Water Molecule Regulation Strategy.
Inorg Chem
November 2024
State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
In the field of nonlinear optical (NLO) materials research, the design and synthesis of novel materials are crucial for advancing modern scientific and technological development. This study employs an innovative coordination strategy, building upon the existing structure of [Ln(CHCOO)(HO)]·4HO (Ln = Tb, Sm), to successfully synthesize a series of acetate rare-earth metal compounds [Ln(CHCOO)(HO)] [Ln = Tb(), Er(), Y()] by regulating the number of water molecules. This approach achieved a structural transition from centrosymmetric (CS) to noncentrosymmetric (NCS), endowing these compounds with significant nonlinear optical responses.
View Article and Find Full Text PDFModular Synthesis of Monoanionic PN Ligands Leads to Unexpected Structural Diversity in Lanthanum Chemistry.
Inorg Chem
October 2024
Faculty of Chemistry and Pharmacy, Institute of General, Inorganic and Theoretical Chemistry, Leopold-Franzens-University Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria.
We report a new synthetic entry to a series of -substituted anilidophosphine ligands (short HPN, R = pTol (), 3,5-dimethylphenyl (), 3,5-bis(trifluoromethyl)phenyl (), 2-methoxyphenyl (), diisopropylphenyl (), and adamantyl ()), allowing a detailed tuning of their steric (and electronic) properties. could be converted into their lithium salts , which are effective precursors for salt metathesis reactions. The new ligands are used for the synthesis of an array of lanthanide complexes using LaCl(THF) as a precursor.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!