Employing heteronuclear double resonance and paramagnetic additives it was established that the additional broadening of the signals in the PMR spectrum of 1-vinylimidazole is caused by the1H -14N spin-spin coupling, while in the spectrum of 1-vinylpyrazole it is caused, in addition, by the long-range1H-1H spin -spin coupling via six bonds.
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V. K. Voronov, Izv. Sibirsk. Otd. Akad. Nauk SSSR, Ser. Khim. Nauk, 67 (1971).
M. Witanowski, L. Stefanik, H. Stefanik, H. Januszewski, and Z. W. Wolkowski, Chem. Commun., 1573 (1971).
M. Hirayama, E. Edagawa, and Y. Hanyu, Chem. Commun., 1343 (1972).
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 200–201, January, 1977.
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Voronov, V.K., Glukhikh, V.I., Domnina, E.S. et al. Use of Eu(DPM)3 to study the long-range spin-spin coupling of1H-1H and1H-14N via the PMR spectra. Russ Chem Bull 26, 176–177 (1977). https://doi.org/10.1007/BF00921524
- Double Resonance
- Spin Coupling
- Heteronuclear Double Resonance
- Paramagnetic Additive