Skip to main content

Solvation Structure and Ion Complexation of La3+ in a 1 Molal Aqueous Solution of Lanthanum Chloride

Díaz-Moreno, Sofia, Ramos, Silvia, Bowron, Daniel T. (2011) Solvation Structure and Ion Complexation of La3+ in a 1 Molal Aqueous Solution of Lanthanum Chloride. The Journal of Physical Chemistry A, 115 (24). pp. 6575-6581. ISSN 1089-5639. E-ISSN 1520-5215. (doi:10.1021/jp202961t) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:64997)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
http://dx.doi.org/10.1021/jp202961t

Abstract

H/D isotopic substitution neutron scattering and X-ray scattering have been used to investigate the short and intermediate range solution structure in a 1 m aqueous solution of lanthanum chloride. To improve the reliability of the local structural information on the cation environment, information has been incorporated from Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy data into the applied analytical framework. The markedly different structural sensitivities of the experimental probes allow the construction of a detailed three-dimensional atomistic model using the Empirical Potential Structure Refinement (EPSR) technique. The results show that at the investigated concentration La3+ is hydrated by eight water molecules and one chloride ion, forming an inner-sphere ion complex in which the water molecules maintain angular configurations consistent with a tricapped trigonal prism configuration. This local geometry considerably disrupts the bulk solvent structure.

Item Type: Article
DOI/Identification number: 10.1021/jp202961t
Additional information: PMID: 21574644
Uncontrolled keywords: Physics of Quantum Materials
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Silvia Ramos Perez
Date Deposited: 05 Dec 2017 13:42 UTC
Last Modified: 16 Nov 2021 10:24 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/64997 (The current URI for this page, for reference purposes)

University of Kent Author Information

  • Depositors only (login required):

Total unique views for this document in KAR since July 2020. For more details click on the image.