Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 60, Issue 16, Pages 8823-8826Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202016412
Keywords
Faraday effect; hyperpolarization; NMR spectroscopy; nuclear spin optical rotation
Categories
Funding
- National Science Foundation [CHE-1404548, CHE-1404529]
- Welch Foundation [A-1658]
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The study introduces the dissolution dynamic nuclear polarization technique to enhance the sensitivity of nuclear spin optical rotation (NSOR), allowing the observation of NSOR signals of H-1 and F-19 nuclei in a single scan. This technique is suitable for studying electronic transitions from a specific nucleus in large molecules.
Nuclear spin optical rotation (NSOR) has been investigated as a magneto-optical effect, which holds the potential for applications, including hybrid optical-nuclear magnetic resonance (NMR) spectroscopy and gradientless imaging. The intrinsic nature of NSOR renders its detection relatively insensitive, which has prevented it moving from a proof of concept to a method supporting chemical characterizations. In this work, the dissolution dynamic nuclear polarization technique is introduced to provide nuclear spin polarization, increasing the signal-to-noise ratio by several thousand times. NSOR signals of H-1 and F-19 nuclei are observed in a single scan for diluted compounds, which has made this effect suitable for the determination of electronic transitions from a specific nucleus in a large molecule.
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