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Pyrazole-type complexes with Ni(II) and Cu(II) Solvent exchange reactions in coordination compounds

Authorized Users Only
2017
Authors
Jaćimović, Željko K.
Giester, Gerald
Kosović, Milica
Bogdanović, Goran A.
Novaković, Slađana B.
Leovac, Vukadin M.
Latinović, Nedeljko
Hollo, Berta Barta
Szecsenyi, Katalin Meszaros
Article (Published version)
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Abstract
New nickel(II) and copper(II) coordination compounds were synthesized by the reaction of N-(benzyloxycarbonyl)-1H-pyrazole-1-carboxamidine ligand (HL) with Ni(II) and Cu(II) acetate in methanolic solution. The crystal and molecular structures of the complexes as well as those of the ligand were determined by single-crystal X-ray structure analysis. The octahedral surrounding around the metal centers in the isostructural complexes [ML2(MeOH)(2)], M = Ni(II), Cu(II), MeOH = methanol, is established by the bidentate coordination of two ligand molecules through the pyrazole nitrogen and the deprotonated nitrogen atom of the carboxamidine group along with the oxygen atoms from two MeOH molecules. Despite that the molecular structure of the complexes was determined by X-ray structure analysis, in the FT-IR spectra of the compounds the characteristic bands for MeOH were missing. By coupled TG-MS measurements, it was found that compounds during the transport and storage exchanged MeOH by water... molecules. The amount of the water was calculated on the basis of thermogravimetric data. The antifungal activity of the compounds was tested against fungi Ph. viticola and B. dothidea and compared to that of a commercial fungicide. Depending on the fungi and on the structure, the compounds showed different, but somewhat lower activity than the commercial fungicide.

Keywords:
N-(Benzyloxycarbonyl)-1H-pyrazole-1-carboxamidine / Cu(II) and Ni(II) complexes / TG-MS / Solvent exchange reactions / Antifungal activity
Source:
Journal of Thermal Analysis and Calorimetry, 2017, 127, 2, 1501-1509
Funding / projects:
  • Design, synthesis, characterization and assessment of practical applications of coordination and organometallic compounds (RS-172014)
  • Secretariat for Science and Technological Development (Autonomous Province of Vojvodina, Republic of Serbia)

DOI: 10.1007/s10973-016-5549-9

ISSN: 1388-6150; 1588-2926

WoS: 000394142200037

Scopus: 2-s2.0-84970007058
[ Google Scholar ]
15
9
URI
https://vinar.vin.bg.ac.rs/handle/123456789/1428
Collections
  • WoS Import
Institution/Community
Vinča
TY  - JOUR
AU  - Jaćimović, Željko K.
AU  - Giester, Gerald
AU  - Kosović, Milica
AU  - Bogdanović, Goran A.
AU  - Novaković, Slađana B.
AU  - Leovac, Vukadin M.
AU  - Latinović, Nedeljko
AU  - Hollo, Berta Barta
AU  - Szecsenyi, Katalin Meszaros
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1428
AB  - New nickel(II) and copper(II) coordination compounds were synthesized by the reaction of N-(benzyloxycarbonyl)-1H-pyrazole-1-carboxamidine ligand (HL) with Ni(II) and Cu(II) acetate in methanolic solution. The crystal and molecular structures of the complexes as well as those of the ligand were determined by single-crystal X-ray structure analysis. The octahedral surrounding around the metal centers in the isostructural complexes [ML2(MeOH)(2)], M = Ni(II), Cu(II), MeOH = methanol, is established by the bidentate coordination of two ligand molecules through the pyrazole nitrogen and the deprotonated nitrogen atom of the carboxamidine group along with the oxygen atoms from two MeOH molecules. Despite that the molecular structure of the complexes was determined by X-ray structure analysis, in the FT-IR spectra of the compounds the characteristic bands for MeOH were missing. By coupled TG-MS measurements, it was found that compounds during the transport and storage exchanged MeOH by water molecules. The amount of the water was calculated on the basis of thermogravimetric data. The antifungal activity of the compounds was tested against fungi Ph. viticola and B. dothidea and compared to that of a commercial fungicide. Depending on the fungi and on the structure, the compounds showed different, but somewhat lower activity than the commercial fungicide.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Pyrazole-type complexes with Ni(II) and Cu(II) Solvent exchange reactions in coordination compounds
VL  - 127
IS  - 2
SP  - 1501
EP  - 1509
DO  - 10.1007/s10973-016-5549-9
ER  - 
@article{
author = "Jaćimović, Željko K. and Giester, Gerald and Kosović, Milica and Bogdanović, Goran A. and Novaković, Slađana B. and Leovac, Vukadin M. and Latinović, Nedeljko and Hollo, Berta Barta and Szecsenyi, Katalin Meszaros",
year = "2017",
abstract = "New nickel(II) and copper(II) coordination compounds were synthesized by the reaction of N-(benzyloxycarbonyl)-1H-pyrazole-1-carboxamidine ligand (HL) with Ni(II) and Cu(II) acetate in methanolic solution. The crystal and molecular structures of the complexes as well as those of the ligand were determined by single-crystal X-ray structure analysis. The octahedral surrounding around the metal centers in the isostructural complexes [ML2(MeOH)(2)], M = Ni(II), Cu(II), MeOH = methanol, is established by the bidentate coordination of two ligand molecules through the pyrazole nitrogen and the deprotonated nitrogen atom of the carboxamidine group along with the oxygen atoms from two MeOH molecules. Despite that the molecular structure of the complexes was determined by X-ray structure analysis, in the FT-IR spectra of the compounds the characteristic bands for MeOH were missing. By coupled TG-MS measurements, it was found that compounds during the transport and storage exchanged MeOH by water molecules. The amount of the water was calculated on the basis of thermogravimetric data. The antifungal activity of the compounds was tested against fungi Ph. viticola and B. dothidea and compared to that of a commercial fungicide. Depending on the fungi and on the structure, the compounds showed different, but somewhat lower activity than the commercial fungicide.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Pyrazole-type complexes with Ni(II) and Cu(II) Solvent exchange reactions in coordination compounds",
volume = "127",
number = "2",
pages = "1501-1509",
doi = "10.1007/s10973-016-5549-9"
}
Jaćimović, Ž. K., Giester, G., Kosović, M., Bogdanović, G. A., Novaković, S. B., Leovac, V. M., Latinović, N., Hollo, B. B.,& Szecsenyi, K. M.. (2017). Pyrazole-type complexes with Ni(II) and Cu(II) Solvent exchange reactions in coordination compounds. in Journal of Thermal Analysis and Calorimetry, 127(2), 1501-1509.
https://doi.org/10.1007/s10973-016-5549-9
Jaćimović ŽK, Giester G, Kosović M, Bogdanović GA, Novaković SB, Leovac VM, Latinović N, Hollo BB, Szecsenyi KM. Pyrazole-type complexes with Ni(II) and Cu(II) Solvent exchange reactions in coordination compounds. in Journal of Thermal Analysis and Calorimetry. 2017;127(2):1501-1509.
doi:10.1007/s10973-016-5549-9 .
Jaćimović, Željko K., Giester, Gerald, Kosović, Milica, Bogdanović, Goran A., Novaković, Slađana B., Leovac, Vukadin M., Latinović, Nedeljko, Hollo, Berta Barta, Szecsenyi, Katalin Meszaros, "Pyrazole-type complexes with Ni(II) and Cu(II) Solvent exchange reactions in coordination compounds" in Journal of Thermal Analysis and Calorimetry, 127, no. 2 (2017):1501-1509,
https://doi.org/10.1007/s10973-016-5549-9 . .

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