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  • 1. Fisher, AI
    et al.
    Ruzanov, DO
    Panina, NS
    Belyaev, AN
    Simanova, SA
    Dolgushin, FM
    Shchukarev, Andrey V
    Umeå University, Faculty of Science and Technology, Department of Chemistry.
    The first example of cobalt(III) mu-oxoacetate with water molecules in apical positions2008In: Russian journal of general chemistry, ISSN 1070-3632, E-ISSN 1608-3350, Vol. 78, no 11, p. 2006-2012Article in journal (Refereed)
    Abstract [en]

    Oxidation of Co(MeCOO)(2)center dot 4H(2)O with ozone in acetic acid followed by the treatment with nitric acid results in the formation of the trinuclear oxo-centered acetate complex [Co(III) (3)(mu(3)-O)(mu-O(2)CMe)(6)(OH(2))(3)] NO(3)center dot MeCOOH ([I]NO(3)center dot MeCOOH). Reasons of a decrease in the idealized symmetry of molecular structure (D (3h) -> D (3)) of the complex cation [I](+) were analyzed by means of quantum-chemical calculations. The complex does not retain its structure in solutions (in water, methanol, and ethanol).

  • 2. Golyakov, A. M.
    et al.
    Shchukarev, Andrey V.
    Umeå University, Faculty of Science and Technology, Department of Chemistry.
    Ardasheva, L. P.
    Borisov, A. N.
    Electrochemical and spectral properties of the polymer form of Cu(II) complex with N,N '-bis(salicylidene)-1,3-propylenediamine2013In: Russian journal of general chemistry, ISSN 1070-3632, E-ISSN 1608-3350, Vol. 83, no 3, p. 423-429Article in journal (Refereed)
    Abstract [en]

    A conductive polymer based on the Cu(II) complex with N,N'-bis(salicylidene)-1,3-propylenediamine was obtained electrochemically. The optimal mode of the synthesis of the polymer under potentiostatic conditions was found. We determined the charge diffusion coefficient and activation barrier and elucidated the nature of the limiting step of the charge transfer in the polymer bulk in the electrolyte medium. The azomethine base, Cu(II) complex, and its polymer form in the oxidized and reduced states were characterized by X-ray photoelectron spectroscopy and electron absorption spectroscopy.

  • 3. Kononova, S V
    et al.
    Kruchinina, E V
    Romashkova, K A
    Potokin, I L
    Shchukarev, Andrey V
    Umeå University, Faculty of Science and Technology, Department of Chemistry.
    Kudryavtsev, V V
    Phase-inversion gradient-porous films on the basis of polyamidoimides derived from phthalimidobenzenedicarbonyl dichloride and various diamines 2010In: Russian journal of general chemistry, ISSN 1070-3632, E-ISSN 1608-3350, Vol. 80, no 10, p. 1977-1985Article in journal (Refereed)
    Abstract [en]

    Morphology of microporous films prepared from aromatic polyamidoimides under different molding conditions was studied by scanning, transmission, and atomic force microscopy with the specific attention given to the nanosize skin layer. The films were manufactured by the phase inversion molding of aromatic polyamidoimides which were synthesized by low-temperature polycondensation of phthalimidobenzenedicarbonyl dichloride with various diamines. Comparison of the parameters of films, including their wettability and X-ray photoelectron spectroscopy data, gave additional information on factors affecting the mechanism of formation of microporous membranes in the system polymer (polyamidoimide)-solvent (N-methylpyrrolidin-2-one)-non-solvent (water).

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