ENDOR study of nitrogen hyperfine and quadrupole tensors in vanadyl porphyrins of heavy crude oil

I. N. Gracheva; M. R. Gafurov; G. V Mamin; T. B. Biktagirov; A. A. Rodionov; A. V. Galukhin; S. B. Orlinskii

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arXiv · 1702.06066

ENDOR study of nitrogen hyperfine and quadrupole tensors in vanadyl porphyrins of heavy crude oil

I. N. Gracheva·M. R. Gafurov·G. V Mamin·T. B. Biktagirov·A. A. Rodionov·A. V. Galukhin·S. B. Orlinskii

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Abstract

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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I. N. Gracheva, M. R. Gafurov, G. V Mamin, T. B. Biktagirov, A. A. Rodionov, A. V. Galukhin, S. B. Orlinskii. 2017-01-28. ENDOR study of nitrogen hyperfine and quadrupole tensors in vanadyl porphyrins of heavy crude oil. https://arxiv.org/abs/1702.06066

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