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Transition metal complexes with pyrazole based ligands. Part 27. Structural and thermal characterization of cobalt(II) halide and pseudohalide complexes with 4-acetyl-3-amino-5-methylpyrazole

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2007
3340.pdf (348.9Kb)
Authors
Leovac, Vukadin M.
Tomić, Zoran D.
Szecsenyi, Katalin Meszaros
Jovanović, Ljiljana S.
Joksović, Milan D.
Article
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Abstract
The crystal and molecular structures of four tetrahedral structurally similar [Co(aamp)(2)X-2] complexes (aamp = 4-acetyl-3-amino-5-methylpyrazole, X = Cl, Br, I and NCS) were determined by X-ray diffraction analysis and are discussed in detail. It was found that the different capacity of the ligand X (NCS vs. Cl, Br, I) for the formation of non-bonding contacts influence the mode of molecular association in the solid state. The complexes were characterized by UV-Vis spectroscopy. The first step of the thermal decomposition of the compounds was checked and is discussed in the view of the IR spectrum of the intermediate isolated from [Co(aamp)(2)Br-2] by the quasi-isothermal technique.
Keywords:
cobalt(II) complexes / 4-acetyl-3-amino-5-methylpyrazole / crystal structure / electronic spectra / quasi-isothermal TA
Source:
Journal of the Serbian Chemical Society, 2007, 72, 12, 1281-1293
Funding / projects:
  • Sinteze, fizičke, strukturne i biološke karakteristike novih kompleksnih jedenjenja (RS-142028)

DOI: 10.2298/JSC0712281L

ISSN: 0352-5139

WoS: 000252412100013

Scopus: 2-s2.0-36949033406
[ Google Scholar ]
5
5
URI
https://vinar.vin.bg.ac.rs/handle/123456789/3344
Collections
  • WoS Import
Institution/Community
Vinča
TY  - JOUR
AU  - Leovac, Vukadin M.
AU  - Tomić, Zoran D.
AU  - Szecsenyi, Katalin Meszaros
AU  - Jovanović, Ljiljana S.
AU  - Joksović, Milan D.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3344
AB  - The crystal and molecular structures of four tetrahedral structurally similar [Co(aamp)(2)X-2] complexes (aamp = 4-acetyl-3-amino-5-methylpyrazole, X = Cl, Br, I and NCS) were determined by X-ray diffraction analysis and are discussed in detail. It was found that the different capacity of the ligand X (NCS vs. Cl, Br, I) for the formation of non-bonding contacts influence the mode of molecular association in the solid state. The complexes were characterized by UV-Vis spectroscopy. The first step of the thermal decomposition of the compounds was checked and is discussed in the view of the IR spectrum of the intermediate isolated from [Co(aamp)(2)Br-2] by the quasi-isothermal technique.
T2  - Journal of the Serbian Chemical Society
T1  - Transition metal complexes with pyrazole based ligands. Part 27. Structural and thermal characterization of cobalt(II) halide and pseudohalide complexes with 4-acetyl-3-amino-5-methylpyrazole
VL  - 72
IS  - 12
SP  - 1281
EP  - 1293
DO  - 10.2298/JSC0712281L
ER  - 
@article{
author = "Leovac, Vukadin M. and Tomić, Zoran D. and Szecsenyi, Katalin Meszaros and Jovanović, Ljiljana S. and Joksović, Milan D.",
year = "2007",
abstract = "The crystal and molecular structures of four tetrahedral structurally similar [Co(aamp)(2)X-2] complexes (aamp = 4-acetyl-3-amino-5-methylpyrazole, X = Cl, Br, I and NCS) were determined by X-ray diffraction analysis and are discussed in detail. It was found that the different capacity of the ligand X (NCS vs. Cl, Br, I) for the formation of non-bonding contacts influence the mode of molecular association in the solid state. The complexes were characterized by UV-Vis spectroscopy. The first step of the thermal decomposition of the compounds was checked and is discussed in the view of the IR spectrum of the intermediate isolated from [Co(aamp)(2)Br-2] by the quasi-isothermal technique.",
journal = "Journal of the Serbian Chemical Society",
title = "Transition metal complexes with pyrazole based ligands. Part 27. Structural and thermal characterization of cobalt(II) halide and pseudohalide complexes with 4-acetyl-3-amino-5-methylpyrazole",
volume = "72",
number = "12",
pages = "1281-1293",
doi = "10.2298/JSC0712281L"
}
Leovac, V. M., Tomić, Z. D., Szecsenyi, K. M., Jovanović, L. S.,& Joksović, M. D.. (2007). Transition metal complexes with pyrazole based ligands. Part 27. Structural and thermal characterization of cobalt(II) halide and pseudohalide complexes with 4-acetyl-3-amino-5-methylpyrazole. in Journal of the Serbian Chemical Society, 72(12), 1281-1293.
https://doi.org/10.2298/JSC0712281L
Leovac VM, Tomić ZD, Szecsenyi KM, Jovanović LS, Joksović MD. Transition metal complexes with pyrazole based ligands. Part 27. Structural and thermal characterization of cobalt(II) halide and pseudohalide complexes with 4-acetyl-3-amino-5-methylpyrazole. in Journal of the Serbian Chemical Society. 2007;72(12):1281-1293.
doi:10.2298/JSC0712281L .
Leovac, Vukadin M., Tomić, Zoran D., Szecsenyi, Katalin Meszaros, Jovanović, Ljiljana S., Joksović, Milan D., "Transition metal complexes with pyrazole based ligands. Part 27. Structural and thermal characterization of cobalt(II) halide and pseudohalide complexes with 4-acetyl-3-amino-5-methylpyrazole" in Journal of the Serbian Chemical Society, 72, no. 12 (2007):1281-1293,
https://doi.org/10.2298/JSC0712281L . .

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