ENDOR study of nitrogen hyperfine and quadrupole tensors in vanadyl porphyrins of heavy crude oil
Gracheva, I. N. · Gafurov, M. R. · Mamin, G. V · Biktagirov, T. B. · Rodionov, A. A. · Galukhin, A. V. · Orlinskii, S. B.
Chemical Physics
Earth and Planetary Astrophysics
Disordered Systems and Neural Networks
Materials Science
Original · EN
We report the observation of pulsed electron-nuclear double resonance (ENDOR) spectrum caused by interactions of the nitrogen nuclei 14N with the unpaired electron of the paramagnetic vanadyl complexes VO2+ of vanadyl porphyrins in natural crude oil. We provide detailed experimental and theoretical characterization of the nitrogen hyperfine and quadrupole tensors.
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