Co(II) Complexes with CF3 Derivatives of Pyrazolyl Substituted Nitronilnitroxyls

Co(II) Complexes with CF3 Derivatives of Pyrazolyl Substituted Nitronilnitroxyls Научная публикация

Журнал

Journal of Structural Chemistry
ISSN: 1573-8779 , E-ISSN: 0022-4766

Вых. Данные

Год: 2025, Том: 66, Номер: 1, Страницы: 63-72 Страниц : 10 DOI: 10.1134/s0022476625010056

Авторы

Fokin S.V. ¹ , Romanenko G.V. ¹ , Smirnova K.A. ¹ , Bogomyakov A.S. ¹ , Serykh A.A. ² , Tretyakov E.V. ²

Организации

1	International Tomography Center, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2	Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia

Structures of new heterospin cobalt(II) hexafluoroacetylacetonate complexes (Co(hfac)2) with stable nitronylnitroxyl radicals containing 1-methyl-3-trifluoromethyl- (L1), 1-ethyl-3-trifluoromethyl- (L2), or 1-ethyl-5-trifluoromethylpyrazol-4-yl substituents (L3) are considered. It is shown that the interaction of Co(hfac)2 with L1 and L2 yields a new type of heterospin complexes with the [Co(hfac)2(L)2] stoichiometry, where L is coordinated by the oxygen atom of the nitronyl nitroxide fragment. The interaction with L3 yields a dimeric complex [Co(hfac)2(L3)]2 with paramagnetic ligands performing a bidentate-bridging function due to the coordination of imine N atoms of the pyrazole ring and O atoms of the paramagnetic moiety. Magnetic behavior of [Co(hfac)2(L)2] complexes indicates an antiferromagnetic interaction between the cobalt ion and coordinated nitronyl-nitroxide groups.

Fokin S.V. , Romanenko G.V. , Smirnova K.A. , Bogomyakov A.S. , Serykh A.A. , Tretyakov E.V.
Co(II) Complexes with CF3 Derivatives of Pyrazolyl Substituted Nitronilnitroxyls
Journal of Structural Chemistry. 2025. V.66. N1. P.63-72. DOI: 10.1134/s0022476625010056 WOS Scopus OpenAlex

Web of science:	WOS:001421218700006
Scopus:	2-s2.0-85218820948
OpenAlex:	W4407405536

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