Probing mercury complex speciation with multinuclear NMR

Deborah C. Bebout, Steven M. Berry

Research output: Chapter in Book/Report/Conference proceedingChapter

10 Scopus citations

Abstract

Investigation of the solution-state coordination chemistry of mercury presents unique challenges. Multinuclear NMR methods are particularly appropriate for the characterization of mercury complexes in solution because 199Hg has I∈=∈1/2 and a natural abundance of 16.85%. Although the coordination chemistry of Hg(II) with mono- and bidentate ligands is commonly plagued by rapid exchange processes, slow exchange conditions on the chemical-shift time scale have recently been identified for a variety of acyclic ligands with three or more donor groups and biological macromolecules. Heteronuclear coupling to 199Hg has been detected over as many as five bonds in coordination compounds with multidentate ligands permitting characterization of the species prevalent under slow ligand exchange conditions. In spite of geometric isomerization processes, these studies have enhanced the ability to relate δHg and J(199Hg1H) to structural trends.

Original languageEnglish (US)
Title of host publicationRecent Developments in Mercury Science
EditorsDavid Atwood
Pages81-105
Number of pages25
DOIs
StatePublished - Jan 13 2006

Publication series

NameStructure and Bonding
Volume120
ISSN (Print)0081-5993
ISSN (Electronic)1616-8550

Keywords

  • Mercury
  • NMR
  • Slow exchange

Fingerprint Dive into the research topics of 'Probing mercury complex speciation with multinuclear NMR'. Together they form a unique fingerprint.

Cite this