Dimeric complexes of manganese(II) and Nickel(II) hexafluoroacetylacetonates with pyrazole-containing nitronylnitroxyl radicals

G. V. Romanenko, S. V. Fokin, S. F. Vasilevskii, E. V. Tret'Yakov, Yu G. Shvedenkov, V. I. Ovcharenko

Research output: Contribution to journal › Article

Abstract

Reactions of Ni(II) and Mn(II) hexafluoroacetylacetonates with pyrazole-containing nitronylnitroxyl radicals (L) result in dimeric heterospin complexes [M(hfac)₂L]₂ or [M(hfac)₂L]₂·C₆H₆. The paramagnetic ligands in the centrosymmetric binuclear molecules function as a bridge, with the nitroxyl O atom being bound to one metal and the imine N atom of the pyrazole ring to the other metal atom. The metal environment is a cis-octahedron with short M-O_NO distances, which specifies a strong antiferromagnetic interaction between the lone electrons of paramagnetic centers in M-O•-N< exchange clusters.

Original language	English
Pages (from-to)	360-367
Number of pages	8
Journal	Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
Volume	27
Issue number	5
DOIs	https://doi.org/10.1023/A:1011354314831
Publication status	Published - 1 Dec 2001
Externally published	Yes

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ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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Romanenko, G. V., Fokin, S. V., Vasilevskii, S. F., Tret'Yakov, E. V., Shvedenkov, Y. G., & Ovcharenko, V. I. (2001). Dimeric complexes of manganese(II) and Nickel(II) hexafluoroacetylacetonates with pyrazole-containing nitronylnitroxyl radicals. Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, 27(5), 360-367. https://doi.org/10.1023/A:1011354314831

Dimeric complexes of manganese(II) and Nickel(II) hexafluoroacetylacetonates with pyrazole-containing nitronylnitroxyl radicals. / Romanenko, G. V.; Fokin, S. V.; Vasilevskii, S. F.; Tret'Yakov, E. V.; Shvedenkov, Yu G.; Ovcharenko, V. I.

In: Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, Vol. 27, No. 5, 01.12.2001, p. 360-367.

Research output: Contribution to journal › Article

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abstract = "Reactions of Ni(II) and Mn(II) hexafluoroacetylacetonates with pyrazole-containing nitronylnitroxyl radicals (L) result in dimeric heterospin complexes [M(hfac)2L]2 or [M(hfac)2L]2·C6H6. The paramagnetic ligands in the centrosymmetric binuclear molecules function as a bridge, with the nitroxyl O atom being bound to one metal and the imine N atom of the pyrazole ring to the other metal atom. The metal environment is a cis-octahedron with short M-ONO distances, which specifies a strong antiferromagnetic interaction between the lone electrons of paramagnetic centers in M-O•-N< exchange clusters.",

author = "Romanenko, {G. V.} and Fokin, {S. V.} and Vasilevskii, {S. F.} and Tret'Yakov, {E. V.} and Shvedenkov, {Yu G.} and Ovcharenko, {V. I.}",

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AU - Romanenko, G. V.

AU - Fokin, S. V.

AU - Vasilevskii, S. F.

AU - Tret'Yakov, E. V.

AU - Shvedenkov, Yu G.

AU - Ovcharenko, V. I.

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AB - Reactions of Ni(II) and Mn(II) hexafluoroacetylacetonates with pyrazole-containing nitronylnitroxyl radicals (L) result in dimeric heterospin complexes [M(hfac)2L]2 or [M(hfac)2L]2·C6H6. The paramagnetic ligands in the centrosymmetric binuclear molecules function as a bridge, with the nitroxyl O atom being bound to one metal and the imine N atom of the pyrazole ring to the other metal atom. The metal environment is a cis-octahedron with short M-ONO distances, which specifies a strong antiferromagnetic interaction between the lone electrons of paramagnetic centers in M-O•-N< exchange clusters.

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10.1023/A:1011354314831