Structure of the hydrated and dimethyl sulfoxide solvated rubidium ions in solution

Abstract

The structure of the hydrated and the dimethyl sulfoxide solvated rubidium ions in solution has been determined by means of large-angle X-ray scattering (LAXS) and extended X-ray absorption fine structure (EXAFS) studies. The models of the hydrated and dimethyl sulfoxide solvated rubidium ions fitting the experimental data best are square antiprisms with Rb-O bond distances of 2.98(2) and 2.98(3) Angstrom, respectively. The EXAFS data show a significant asymmetry in the Rb-O bond distance distribution with C-3 values of 0.0076 and 0.015 Angstrom(3), respectively. No second hydration sphere is observed around the hydrated rubidium ion. The dimethyl sulfoxide solvated rubidium ion displays a Rb-O-S bond angle of ca. 130degrees, which is typical for a medium hard electron acceptor such as rubidium

Published in

Inorganic Chemistry
2004, volume: 43, number: 11, pages: 3543-3549
Publisher: AMER CHEMICAL SOC

SLU Authors

• Persson, Ingmar

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Condensed Matter Physics

Publication identifier

• DOI: https://doi.org/10.1021/ic030310t

Permanent link to this page (URI)

https://res.slu.se/id/publ/2914