mriselMagnetic Resonance in SolidsMagnetic Resonance in Solids2072-5981Kazan Federal Universitymrisel-112Research ArticleСтатьиENDOR study of nitrogen hyperfine and quadrupole tensors in vanadyl porphyrins of heavy crude oilGrachevaI. N.

Kremlevskaya 18, Kazan 420008

subirina@gmail.comGafurovM. R.

Kremlevskaya 18, Kazan 420008

MaminG. V.

Kremlevskaya 18, Kazan 420008

BiktagirovT. B.

Kremlevskaya 18, Kazan 420008

RodionovA. A.

Kremlevskaya 18, Kazan 420008

GalukhinA. V.

Kremlevskaya 18, Kazan 420008

OrlinskiiS. B.

Kremlevskaya 18, Kazan 420008

Kazan Federal UniversityRussian Federation20161511201618116102 (5 pp.)Copyright © Gracheva I.N., Gafurov M.R., Mamin G.V., Biktagirov T.B., Rodionov A.A., Galukhin A.V., Orlinskii S.B., 20242024Gracheva I.N., Gafurov M.R., Mamin G.V., Biktagirov T.B., Rodionov A.A., Galukhin A.V., Orlinskii S.B.Gracheva I.N., Gafurov M.R., Mamin G.V., Biktagirov T.B., Rodionov A.A., Galukhin A.V., Orlinskii S.B.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.mrsej.ru/jour/article/view/112

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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The authors declare that there are no conflicts of interest present.