Cobalt(II), nickel(II), and copper(II) bromide complexes with 3-amino-4-ethoxycarbonylpyrazole: Syntheses, structures, and magnetic properties

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 language	English
Pages (from-to)	86-92
Number of pages	7
Journal	Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
Volume	41
Issue number	2
DOIs	https://doi.org/10.1134/S1070328415020049
Publication status	Published - 1 Jan 2015
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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Lavrenova, L. G., Ivanova, A. D., Bogomyakov, A. S., Smolentsev, A. I., Burdukov, A. B., Sheludyakova, L. A., & Vasilevskii, S. F. (2015). Cobalt(II), nickel(II), and copper(II) bromide complexes with 3-amino-4-ethoxycarbonylpyrazole: Syntheses, structures, and magnetic properties. Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, 41(2), 86-92. https://doi.org/10.1134/S1070328415020049

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 journal › Article

Lavrenova, LG, Ivanova, AD, Bogomyakov, AS, Smolentsev, AI, Burdukov, AB, Sheludyakova, LA & Vasilevskii, SF 2015, 'Cobalt(II), nickel(II), and copper(II) bromide complexes with 3-amino-4-ethoxycarbonylpyrazole: Syntheses, structures, and magnetic properties', Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, vol. 41, no. 2, pp. 86-92. https://doi.org/10.1134/S1070328415020049

Lavrenova LG, Ivanova AD, Bogomyakov AS, Smolentsev AI, Burdukov AB, Sheludyakova LA et al. Cobalt(II), nickel(II), and copper(II) bromide complexes with 3-amino-4-ethoxycarbonylpyrazole: Syntheses, structures, and magnetic properties. Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya. 2015 Jan 1;41(2):86-92. https://doi.org/10.1134/S1070328415020049

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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title = "Cobalt(II), nickel(II), and copper(II) bromide complexes with 3-amino-4-ethoxycarbonylpyrazole: Syntheses, structures, and magnetic properties",

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).",

author = "Lavrenova, {L. G.} and Ivanova, {A. D.} and Bogomyakov, {A. S.} and Smolentsev, {A. I.} and Burdukov, {A. B.} and Sheludyakova, {L. A.} and Vasilevskii, {S. F.}",

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AU - Lavrenova, L. G.

AU - Ivanova, A. D.

AU - Bogomyakov, A. S.

AU - Smolentsev, A. I.

AU - Burdukov, A. B.

AU - Sheludyakova, L. A.

AU - Vasilevskii, S. F.

PY - 2015/1/1

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N2 - 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).

AB - 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).

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