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Long live the singlet state!

Malcolm H Levitt1

  • 1School of Chemistry, University of Southampton, University Road, SO17 1BJ Southampton, UK.

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|July 17, 2019
PubMed
Summary
This summary is machine-generated.

This review explores long-lived states in Nuclear Magnetic Resonance (NMR), detailing their connection to spin isomerism and key advancements. It covers applications and future prospects in hyperpolarized NMR techniques.

Keywords:
HyperpolarizationLong-lived stateParahydrogenQuantum rotorSinglet stateSpin isomer

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Area of Science:

  • Nuclear Magnetic Resonance (NMR) Spectroscopy
  • Quantum Chemistry
  • Physical Chemistry

Background:

  • Long-lived states in NMR are crucial for enhancing signal sensitivity.
  • Understanding these states is key to advancing various spectroscopic techniques.
  • Their relationship with spin isomerism offers unique insights into molecular dynamics.

Purpose of the Study:

  • To provide a comprehensive review of the field of long-lived states in NMR.
  • To discuss the connection between long-lived states and spin isomerism.
  • To highlight key developments, applications, and future directions.

Main Methods:

  • Literature review of long-lived states in NMR.
  • Discussion of theoretical concepts like chemical symmetry-switching, magnetic equivalence/inequivalence.
  • Overview of advanced techniques including hyperpolarized NMR, quantum-rotor-induced polarization, and parahydrogen-induced hyperpolarization.

Main Results:

  • Detailed explanation of phenomena related to long-lived states.
  • Exploration of their link to spin isomerism.
  • Summary of current applications and emerging trends in the field.

Conclusions:

  • Long-lived states represent a significant area of development in NMR.
  • Continued research promises novel applications and enhanced spectroscopic capabilities.
  • The field is poised for further innovation in hyperpolarization and quantum phenomena.