Stereo sensitivity of exchange interactions in NiII and CuII heterospin complexes with 5-formylpyrrolyl-substituted nitroxides
- Авторы: Zueva E.1, Tretyakov E.2, Fokin S.2, Romanenko G.2, Tkacheva A.2, Bogomyakov A.2, Petrova O.3, Trofimov B.3, Sagdeev R.4, Ovcharenko V.2
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Учреждения:
- Kazan National Technological University
- International Tomography Center, Siberian Branch of the Russian Academy of Sciences
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences
- Kazan (Volga region) Federal University
- Выпуск: Том 65, № 3 (2016)
- Страницы: 666-674
- Раздел: Full Articles
- URL: https://journals.rcsi.science/1066-5285/article/view/237439
- DOI: https://doi.org/10.1007/s11172-016-1353-8
- ID: 237439
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Аннотация
5-Formylpyrrolyl-substituted nitronyl and imino nitroxide radicals HL1 and HL2 were synthesized. Their solid phases are formed by packing pairs of the molecules. In the {HL1...HL1} pairs, the dominant interaction is the ferromagnetic exchange with J/kB = 8.8 K (Hamiltonian \(H = 2J\left( {\overrightarrow {{s_1}} \overrightarrow {{s_2}} } \right)\)). The ferromagnetic exchange occurs also in the heterospin molecules [Ni(L1)2], [Cu(L1)2], and [Ni(L2)2(MeOH)2]. In the complexes [Ni(L1)2] and [Cu(L1)2], a small change in the mutual orientation of the coordinated ligands has a considerable effect on the value and the sign of the energy of exchange interactions between the unpaired electrons of the metal ion and paramagnetic ligands.
Об авторах
E. Zueva
Kazan National Technological University
Email: Victor.Ovcharenko@tomo.nsc.ru
Россия, 68 ul. K. Marksa, Kazan, 420015
E. Tretyakov
International Tomography Center, Siberian Branch of the Russian Academy of Sciences
Email: Victor.Ovcharenko@tomo.nsc.ru
Россия, 3a ul. Institutskaya, Novosibirsk, 630090
S. Fokin
International Tomography Center, Siberian Branch of the Russian Academy of Sciences
Email: Victor.Ovcharenko@tomo.nsc.ru
Россия, 3a ul. Institutskaya, Novosibirsk, 630090
G. Romanenko
International Tomography Center, Siberian Branch of the Russian Academy of Sciences
Email: Victor.Ovcharenko@tomo.nsc.ru
Россия, 3a ul. Institutskaya, Novosibirsk, 630090
A. Tkacheva
International Tomography Center, Siberian Branch of the Russian Academy of Sciences
Email: Victor.Ovcharenko@tomo.nsc.ru
Россия, 3a ul. Institutskaya, Novosibirsk, 630090
A. Bogomyakov
International Tomography Center, Siberian Branch of the Russian Academy of Sciences
Email: Victor.Ovcharenko@tomo.nsc.ru
Россия, 3a ul. Institutskaya, Novosibirsk, 630090
O. Petrova
A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences
Email: Victor.Ovcharenko@tomo.nsc.ru
Россия, 1 ul. Favorskogo, Irkutsk, 664033
B. Trofimov
A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences
Email: Victor.Ovcharenko@tomo.nsc.ru
Россия, 1 ul. Favorskogo, Irkutsk, 664033
R. Sagdeev
Kazan (Volga region) Federal University
Email: Victor.Ovcharenko@tomo.nsc.ru
Россия, 18 ul. Kremlevskaya, Kazan, 420008
V. Ovcharenko
International Tomography Center, Siberian Branch of the Russian Academy of Sciences
Автор, ответственный за переписку.
Email: Victor.Ovcharenko@tomo.nsc.ru
Россия, 3a ul. Institutskaya, Novosibirsk, 630090