Cobalt(II), nickel(II), and copper(II) bromide complexes with 3-amino-4-ethoxycarbonylpyrazole

Syntheses, structures, and magnetic properties

L. G. Lavrenova, A. D. Ivanova, A. S. Bogomyakov, A. I. Smolentsev, A. B. Burdukov, L. A. Sheludyakova, S. F. Vasilevskii

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

New complexes of cobalt(II), nickel(II), and copper(II) bromides with 3-amino-4-ethoxycarbo- nylpyrazole (L) of the composition ML4Br2 · 2H2O (M = Co(II) and Ni(II)) and CuL2Br2 are synthesized. The compounds are studied by X-ray diffraction analysis (CIF files CCDC nos. 1006284 (I), 1006286 (II), and 1006285 (III)), IR spectroscopy, and static magnetic susceptibility. In the complexes, the metal ions are in the distorted octahedral environment and the ligand is coordinated to the metal by the N(2) atom of the pyrazole cycle according to the monodentate mode. The Co(II) and Ni(II) complexes are mononuclear, whereas CuL2Br2 is polynuclear due to the bridging function of the bromide ion. Complex CuL2Br2 possesses the thermochromic properties: the transition of the color is brown (at room temperature) ⇔ light brown (at the temperature of liquid nitrogen).

Original languageEnglish
Pages (from-to)86-92
Number of pages7
JournalRussian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
Volume41
Issue number2
DOIs
Publication statusPublished - 1 Jan 2015
Externally publishedYes

Fingerprint

Cobalt
Nickel
Magnetic properties
Copper
Liquid nitrogen
Magnetic susceptibility
X ray diffraction analysis
Metal ions
Infrared spectroscopy
Ligands
Color
Bromides
Atoms
Temperature
Ions
Metals
Chemical analysis
CuL2Br2
cupric bromide

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Cobalt(II), nickel(II), and copper(II) bromide complexes with 3-amino-4-ethoxycarbonylpyrazole : Syntheses, structures, and magnetic properties. / Lavrenova, L. G.; Ivanova, A. D.; Bogomyakov, A. S.; Smolentsev, A. I.; Burdukov, A. B.; Sheludyakova, L. A.; Vasilevskii, S. F.

In: Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, Vol. 41, No. 2, 01.01.2015, p. 86-92.

Research output: Contribution to journalArticle

Lavrenova, L. G. ; Ivanova, A. D. ; Bogomyakov, A. S. ; Smolentsev, A. I. ; Burdukov, A. B. ; Sheludyakova, L. A. ; Vasilevskii, S. F. / Cobalt(II), nickel(II), and copper(II) bromide complexes with 3-amino-4-ethoxycarbonylpyrazole : Syntheses, structures, and magnetic properties. In: Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya. 2015 ; Vol. 41, No. 2. pp. 86-92.
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AU - Burdukov, A. B.

AU - Sheludyakova, L. A.

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