Long-lived states in solution NMR: Theoretical examples in three- and four-spin systems

Aaron K. Grant, Elena Vinogradov

Research output: Contribution to journalArticle

52 Scopus citations


Long-lived spin states have been observed in a variety of systems. Although the dynamics underlying the long lifetimes of these states are well understood in the case of two-spin systems, the corresponding dynamics in systems containing more spins appear to be more complex. Recently it has been shown that a selection rule for transitions mediated by intramolecular dipolar relaxation may play a role in determining the lifetimes of long-lived states in systems containing arbitrary numbers of spins. Here we present a theory of long-lived states in systems containing three and four spins and demonstrate how it can be used to identify states that have little or no intramolecular dipolar relaxation.

Original languageEnglish (US)
Pages (from-to)177-190
Number of pages14
JournalJournal of Magnetic Resonance
Issue number2
Publication statusPublished - Aug 2008



  • Intramolecular dipolar relaxation
  • Long-lived states
  • Singlet states

ASJC Scopus subject areas

  • Molecular Biology
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Radiology Nuclear Medicine and imaging
  • Condensed Matter Physics

Cite this