Synthesis and structure of mononuclear zinc complexes with pyridine-2-aldoxime

Coropceanu Eduard; Croitor Lilia; Desyatnik A.; Tyurina Zh.; Dvornina Elena; Codreanu Constantin; Fonari Marina

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2018-11-07 08:50

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COROPCEANU, Eduard, CROITOR, Lilia, DESYATNIK, A., TYURINA, Zh., DVORNINA, Elena, CODREANU, Constantin, FONARI, Marina. Synthesis and structure of mononuclear zinc complexes with pyridine-2-aldoxime. In: Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, 2017, vol. 43, pp. 278-285. ISSN -. DOI: https://doi.org/10.1134/S1070328417050025

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Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya

Volumul 43 / 2017 / ISSN - /ISSNe 1070-3284

Synthesis and structure of mononuclear zinc complexes with pyridine-2-aldoxime

DOI:https://doi.org/10.1134/S1070328417050025

Pag. 278-285

Coropceanu Eduard¹², Croitor Lilia³, Desyatnik A.⁴, Tyurina Zh.⁴, Dvornina Elena⁴, Codreanu Constantin², Fonari Marina³

¹ Institute of Chemistry of the Academy of Sciences of Moldova,
² Tiraspol State University,
³ Institute of Applied Physics, Academy of Sciences of Moldova,
⁴ Institute of Microbiology and Biotechnology of the ASM

Disponibil în IBN: 21 februarie 2018

Rezumat

Three mononuclear different-ligand Zn(II) complexes, [Zn(CH₃COO)₂(PaoH)₂] (I), [Zn(PaoH)₂(DMSO)₂][BF₄]₂ (II), and [Zn(NCS)₂(PaoH)₂] (III) (DMSO = dimethylsulfoxide) were prepared by the reaction of zinc acetate and tetrafluoroborate with pyridine-2-aldoxime (PaoH). The composition and structure of the complexes were confirmed by IR spectroscopy and X-ray diffraction. All compounds crystallize in the monoclinic system, compounds I and II have space group P2₁/n, while compound III has space group C2/c. In all compounds, the Zn coordination polyhedron is a distorted octahedron, which is formed by the N₄O₂ sets of donor atoms in I and II and by N₆ in III. Complex I in the optimal concentration of 5–10 mg/L was found to stimulate the biosynthesis of standard (pH 4.7) amylases by the micromycete Aspergillus niger CNMN FD 06.

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coordination compounds, crystal structure

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