Synthesis, crystal structure, and biological properties of the complex [Co(DmgH)2(Seu)1.4(Se-Seu)0.5(Se2)0.1][BF4]
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KOROPCHANU, E., BULHAK, Ion, SHTEFYRTSE, Anastasia A., BOTNARI, V., MELENCIUC, Mihail, AUTOR, Nou, BOUROSH, Pavlina. Synthesis, crystal structure, and biological properties of the complex [Co(DmgH)2(Seu)1.4(Se-Seu)0.5(Se2)0.1][BF4]. In: Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, 2017, vol. 43, pp. 164-171. ISSN -. DOI: https://doi.org/10.1134/S1070328417030046
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Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
Volumul 43 / 2017 / ISSN - /ISSNe 1070-3284

Synthesis, crystal structure, and biological properties of the complex [Co(DmgH)2(Seu)1.4(Se-Seu)0.5(Se2)0.1][BF4]

DOI: https://doi.org/10.1134/S1070328417030046

Pag. 164-171

Koropchanu E.1, Bulhak Ion1, Shtefyrtse Anastasia A.2, Botnari V.2, Melenciuc Mihail2, Autor Nou1, Bourosh Pavlina3
 
1 Institute of Chemistry of the Academy of Sciences of Moldova,
2 Institute of Genetics, Physiology and Plant Protection of the Moldovan Academy of Sciences,
3 Institute of Applied Physics, Academy of Sciences of Moldova
 
Disponibil în IBN: 27 februarie 2020


Rezumat

A new Co(III) dioxime complex with selenocarbamide was obtained by the reaction of Co(BF4)2 ∙ 6H2O, DmgH2, and Seu (DmgH2 = dimethylglyoxime, Seu = selenocarbamide). According to X-ray diffraction (CIF file CCDC no. 1485732), the product was an ionic coordination compound with unusual composition, [Co(DmgH)2(Seu)1.4(Se-Seu)0.5(Se2)0.1][BF4] (I). Apart from two monodeprotonated DmgH‾ molecules, the central atom coordinates neutral Seu, Se-Seu, and Se2 molecules. Thus, the crystal contains the complex cations [Co(DmgH)2(Seu)2]+, [Co(DmgH)2(Seu)(Se-Seu)]+, and [Co(DmgH)2(Seu)(Se2)]+. Each [BF4]‾ anion is linked to the cations not only by electrostatic forces but also by intermolecular N–H···F hydrogen bonds (H-bonds). The complex cations are combined by intermolecular N–H···O H-bonds. The new coordination compound was found to possess biological activity. Treatment of the garlic (Allium sativum L.) foliage with an aqueous solution of I optimizes the content of selenium in the leaves and cloves and enhances the growth and plant productivity. The organs of treated plants are characterized by enhanced antioxidant protection owing to increasing activity of antioxidant enzymes and contents of proline and assimilation pigments, and decreasing lipid peroxidation.

Cuvinte-cheie
biological activity, cobalt dimethylglyoxime, coordination compounds, selenocarbamide, X-ray diffraction