An electron nuclear double resonance and electron spin resonance study of isotropic CO2- and SO2- radicals in natural carbonates

Idrissi, Samira;Callens, Freddy;Moens, Peter;Debuyst, René;Dejehet, Fernand
(1996) Japanese Journal of Applied Physics. Part 2, Letters & Express Lettres — Vol. 35, n° 10, p. 5331-5332 (1996)

Files

46788.pdf
  • Restricted Access
  • Adobe PDF
  • 1.04 MB
Request a copy

Details

Authors
  • Idrissi, Samira
    Author
  • Callens, Freddy
    Author
  • Moens, Peter
    Author
  • Debuyst, RenéUCLouvain
    Author
  • Dejehet, FernandUCLouvain
    Author
Abstract
Natural samples often exhibit isotropic electron spin resonance (ESR) signals at g=2.0006, (CO2-) and g=2.0057 (SO2-). Electron nuclear double resonance (ENDOR) data were collected for various calcitic or aragonitic samples of marine origin. The small and isotropic H-1 hyperfine ENDOR splitting (250-350 kHz) is explained by a locally disordered water environment for these species. As for the isotropic CO2- and CO3- radicals in synthetic monohydrocalcite and apatite, the radicals are most probably located in the occluded water embedded in these samples, and not in the crystal matrix.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Idrissi, S., Callens, F., Moens, P., Debuyst, R., & Dejehet, F. (1996). An electron nuclear double resonance and electron spin resonance study of isotropic CO2- and SO2- radicals in natural carbonates. Japanese Journal of Applied Physics. Part 2, Letters & Express Lettres, 35(10), 5331-5332. https://hdl.handle.net/2078.5/143587 (Original work published 1996)