Центральная Научная Библиотека УрО РАН

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   Г 44


    Гетероспиновые комплексы на основе биядерного трикетоната Cu(II) и нитроксильных радикалов [] = Heterospin complexes based on dinuclear Cu(II) triketonate and nitroxides / В. И. Овчаренко, С. В. Фокин, Г. В. Романенко, В. Н. Икорский, Р. З. Сагдеев, Д. С. Ячевский, Д. Л. Чижов, В. Н. Чарушин // Изв. АН. Сер. Химическая. - 2006. - № 11 . - С. 1836 - 1840 : рис., табл. - Библиогр. : с. 1840 (15 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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   H 62


    Heterospin complexes based on dinuclear CuII triketonate and nitroxides [Electronic resource] / V. Ovcharenko, S. V. Fokin, G. V. Romanenko, V. Ikorskii, R. S. Sagdeev, D. S. Yachevskii, D. L. Chizhov, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2006. - Vol. 55, № 11. - P1904-1908

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Heterospin complexes of bis(?2-1,1,2,2,8,8,9,9-octafluorononane-3,5,7-trionato)dicopper(II) ([Cu2L2]) with nitronyl nitroxides 2-(1-methyl-1H-pyrazol-4-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-1-oxyl 3-oxide (2) and 4,4,5,5-tetramethyl-2-(3-pyridinyl)-4,5-dihydro-1H-imidazole-1-oxyl 3-oxide (1) were synthesized and structurally characterized. Crystals of the complexes are formed by the discrete bis[1-methyl-4-(4,4,5,5-tetramethyl-3-oxide-1-oxyl-4,5-dihydro-1H-imidazol-2-yl)-1H-pyrazole]-bis (?2-1,1,2,2,8,8,9,9-octafluorononane-3,5,7-trionato)dicopper(II) etherate (3) and bis[3-(4,4,5,5-tetramethyl-3-oxide-1-oxyl-4,5-dihydro-1H-imidazol-2-yl)pyridine]-bis (?2-1,1,2,2,8,8,9,9-octafluorononane-3,5,7-trionato)dicopper(II) (4) molecules. Each Cu atom of the dinuclear chelate fragment coordinates one paramagnetic ligand through the N atom of the pyrazole or pyridine fragment, respectively. In complex 3, the paramagnetic ligands are located on one side of the plane of the chelate fragment, whereas the ligands in complex 4 are located above and below the plane of the chelate fragment. The magnetic properties of complexes 3 and 4 are determined by dominant antiferromagnetic exchange interactions between the unpaired electrons of the CuII atoms in the dinuclear Cu2L2 moiety

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2006, 55 (11), 1904.pdf
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   H 62


    Heterospin complexes of fluorinated dinuclear Cu(II) and Mn(II) triketonates with nitroxides [Electronic resource] / V. Ovcharenko, S. V. Fokin, G. V. Romanenko, A. S. Bogomyakov, D. S. Yachevskii, D. L. Chizhov, V. N. Charushin, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2010. - Vol. 59, № 6. - P1162-1174 : il. - Bibliogr. : p. 1174 (21 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
COPPER(II) -- MANGANESE(II) -- METAL TRIKETONATES -- NITROXIDES -- x-RAY DIFFRACTION STUDY -- MAGNETIC PROPERTIES
Аннотация: Dinuclear heterospin complexes of CuII and MnII 1,1,1,7,7,7-hexafluoroheptane-2,4,6-trionates ([Cu2L2] and [Mn2L2], respectively) with nitronyl nitroxides 2-R-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide 1-oxyls (NIT-R, R = H, Me, Et, m-C5H4N, m-NCC6H4, p-NCC6H4, PzMe) and the diradical NIT-Pz-(CH2)4-Pz-NIT (Pz is 1,4-pyrazolylene) were synthesized and structurally characterized. In the complexes under study, the CuII atom tends to have the square-pyramidal coordination environment, and the MnII atom is in an octahedral environment. The magnetochemical investigation of the compounds in the temperature range of 2–300 K showed that the antiferromagnetic exchange coupling dominates in the [Cu2L2] molecules, whereas this coupling in [Mn2L2] is manifested in the experimental plot µeff(T) at T < 100 K. The magnetic properties of the heterospin complexes of [Cu2L2] with NIT-R are also determined by the intramatrix antiferromagnetic exchange coupling. For the complexes of [Mn2L2] with NIT-R, the coordination mode of the nitroxide plays a decisive role.

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2010, 59 (6), 1162-1174.pdf
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   B 62


    Bis(1,1,1,3,5,5,5-heptafluoro-4-iminopent-2-ene-2-aminato)copper(ii) — a new metal-containing matrix in the design of heterospin systems [Electronic resource] / S. V. Fokin, V. Ovcharenko, G. V. Romanenko, E. V. Tretyakov, A. S. Bogomyakov, V. I. Saloutin, T. I. Filyakova, L. V. Saloutina, V. N. Charushin, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 816-823. - Bibliogr. : p. 823 (11 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
COPPER(II) -- BISCHELATES -- NITROXIDES
Аннотация: The first heterospin compounds based on bis(1,1,1,3,5,5,5 heptafluoro 4 iminopent 2 ene 2 aminato)copper(II) (CuL2) and nitronyl nitroxide radicals, 2 R 4,4,5,5 tetramethyl 4,5 dihydro 1H imidazole 3 oxide 1 oxyls (NIT R, where R = H, Me, Ph, and 1 methyl pyrazol 4 yl), were synthesized and structurally characterized. An important peculiarity of the structure of synthesized solid phases is the formation of a supramolecular structure due to hydrogen bonds between the oxygen atoms of the nitronyl nitroxide fragments of NIT R and the hydrogen atoms of the NH groups of CuL2

\\\\expert2\\NBO\\Russian Chemical Bulletin\\2011, 60 (5), 816-823.pdf
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