The solvation of the mercury(II) ion - A 199Hg NMR study
2005 (English)In: Magnetic Resonance in Chemistry, ISSN 0749-1581, Vol. 43, no 10, 835-842 p.Article in journal (Refereed) Published
The solvation of the mercury(II) ion in solvents with different solvation properties, water, dimethylsulfoxide, N,N-dimethylthioformamide, and liquid ammonia, has been studied by means of 199Hg NMR. The 199Hg chemical shift shows a pronounced dependence on the coordination number of the mercury(II) ion in the solvates resulting in a difference of over 1200 ppm between basically tetrahedral and octahedral complexes. The chemical shifts can furthermore be associated with electron-pair donor properties of the solvents. The spin-lattice relaxation times of the 199Hg nucleus in the solvates have been measured at different applied magnetic fields, concentrations, temperatures, and isotope substitutions. Possible mechanisms for the 199Hg relaxation were proposed and the chemical shielding anisotropy in the solvates has been estimated. The 199Hg relaxation rates and the anisotropy are correlated with the structure of the solvate complexes in solution obtained from recent LAXS and EXAFS studies. Copyright © 2005 John Wiley & Sons, Ltd.
Place, publisher, year, edition, pages
2005. Vol. 43, no 10, 835-842 p.
199Hg NMR, Chemical shifts, Dimethylsulfoxide, Liquid ammonia, N, N-dimethylthioformamide, NMR, Solvent, Spin-lattice relaxation, Water
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-50410DOI: 10.1002/mrc.1625OAI: oai:DiVA.org:liu-50410DiVA: diva2:271306