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Laser enhanced NMR spectroscopy, revisited

Publication ,  Journal Article
Warren, WS; Goswami, D; Mayr, S
Published in: Molecular Physics
February 1, 1998

Experimental investigations of the effects of moderately powerful (10–20 W cm-2) offresonant continuous lasers on NMR spectra provide no evidence for the B (3) field recently proposed, or for any other mechanism which depends on the light polarization. Observed 1H and 13C line shifts with argon-ion laser irradiation for the molecule p-methoxyphenyliminocamphor mostly can be explained by heating effects. Residual shifts due to other mechanisms appear to be at most 0·1 Hz (5% of the linewidth). One mechanism which could account for residual shifts of this magnitude is differences between NMR frequencies in the excited (triplet) and ground electronic states, although our data have insufficient resolution to make definitive claims. However, it seems unlikely that this effect can be made sufficiently large to give practical resolution enhancements without massive heating. © 1998 Taylor & Francis Group, LLC.

Duke Scholars

Published In

Molecular Physics

DOI

EISSN

1362-3028

ISSN

0026-8976

Publication Date

February 1, 1998

Volume

93

Issue

3

Start / End Page

371 / 375

Related Subject Headings

  • Chemical Physics
  • 0307 Theoretical and Computational Chemistry
  • 0306 Physical Chemistry (incl. Structural)
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

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Warren, W. S., Goswami, D., & Mayr, S. (1998). Laser enhanced NMR spectroscopy, revisited. Molecular Physics, 93(3), 371–375. https://doi.org/10.1080/002689798169041
Warren, W. S., D. Goswami, and S. Mayr. “Laser enhanced NMR spectroscopy, revisited.” Molecular Physics 93, no. 3 (February 1, 1998): 371–75. https://doi.org/10.1080/002689798169041.
Warren WS, Goswami D, Mayr S. Laser enhanced NMR spectroscopy, revisited. Molecular Physics. 1998 Feb 1;93(3):371–5.
Warren, W. S., et al. “Laser enhanced NMR spectroscopy, revisited.” Molecular Physics, vol. 93, no. 3, Feb. 1998, pp. 371–75. Scopus, doi:10.1080/002689798169041.
Warren WS, Goswami D, Mayr S. Laser enhanced NMR spectroscopy, revisited. Molecular Physics. 1998 Feb 1;93(3):371–375.

Published In

Molecular Physics

DOI

EISSN

1362-3028

ISSN

0026-8976

Publication Date

February 1, 1998

Volume

93

Issue

3

Start / End Page

371 / 375

Related Subject Headings

  • Chemical Physics
  • 0307 Theoretical and Computational Chemistry
  • 0306 Physical Chemistry (incl. Structural)
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics