Abstract

The structure and stability of a metal ion solvate depend on the steric demands of the solvent molecule upon coordination. Water is a small molecule without steric demands, and the coordination number of metal ion hydrates is given by the number of oxygen atoms able to cluster around a metal ion with a given ionic radius. Some solvent molecules as tetramethyl- and dimethylpropyleneurea and hexamethylphosphoramide have methyl groups close to the oxygen donor atom, which make them require much more space upon coordination. The structures and physico-chemical properties of metal ion solvates with and without steric demands upon coordination, and thereby different crowdedness in the solvation sphere, are discussed in addition to selective solvation in mixed solvents.

Published in

Coordination Chemistry Fundamentals
2023, number: 2, pages: 140-150
Title: Metal Ions and Complexes in Solution
ISBN: 978-1-83916-809-3, eISBN: 978-1-83916-960-1
Publisher: Royal Society of Chemistry

SLU Authors

• Persson, Ingmar

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Inorganic Chemistry


Publication identifier

DOI: https://doi.org/10.1039/BK9781839169601-00140

Permanent link to this page (URI)

https://res.slu.se/id/publ/127364