Synthesis under self-controlled reaction conditions: Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole
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Kovacs, AttilaMeszaros Szecsenyi, Katalin

Leovac, Vukadin M.

Tomić, Zoran D.

Pokol, Gyoergy
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The trinuclear [Zn-3(Hdmpz)(2)(dmpz)(4)(NCS)(2)] complex (Hdmpz: 3,5-dimethylpyrazole) has been synthesized by the reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamidepyrazole. The ammonia evolving gradually from [Zn(NH3)(4)]Cl-2 ensured a mild gradually increasing basic pH during the synthesis which caused a cleavage of the 1-N-substituent. Moreover, the changing pH controlled the pyrazolate anion-neutral ligand equilibrium, and in this way the formation of the precipitate complex. The structure of the complex was investigated by X-ray diffraction and quantum chemical computations. The complex was characterized in detail by FT-IR-spectroscopy and thermal analysis. The bonding interactions between Zn2+ and the ligands were analysed on the basis of the computed data. (c) 2007 Elsevier B.V. All rights reserved.
Keywords:
crystal growth / XRD / FT-IR / thermal analysis / DFT computationsSource:
Journal of Organometallic Chemistry, 2007, 692, 12, 2582-2592
DOI: 10.1016/j.jorganchem.2007.03.003
ISSN: 0022-328X
WoS: 000246819600026
Scopus: 2-s2.0-34247463389
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VinčaTY - JOUR AU - Kovacs, Attila AU - Meszaros Szecsenyi, Katalin AU - Leovac, Vukadin M. AU - Tomić, Zoran D. AU - Pokol, Gyoergy PY - 2007 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3200 AB - The trinuclear [Zn-3(Hdmpz)(2)(dmpz)(4)(NCS)(2)] complex (Hdmpz: 3,5-dimethylpyrazole) has been synthesized by the reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamidepyrazole. The ammonia evolving gradually from [Zn(NH3)(4)]Cl-2 ensured a mild gradually increasing basic pH during the synthesis which caused a cleavage of the 1-N-substituent. Moreover, the changing pH controlled the pyrazolate anion-neutral ligand equilibrium, and in this way the formation of the precipitate complex. The structure of the complex was investigated by X-ray diffraction and quantum chemical computations. The complex was characterized in detail by FT-IR-spectroscopy and thermal analysis. The bonding interactions between Zn2+ and the ligands were analysed on the basis of the computed data. (c) 2007 Elsevier B.V. All rights reserved. T2 - Journal of Organometallic Chemistry T1 - Synthesis under self-controlled reaction conditions: Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole VL - 692 IS - 12 SP - 2582 EP - 2592 DO - 10.1016/j.jorganchem.2007.03.003 ER -
@article{ author = "Kovacs, Attila and Meszaros Szecsenyi, Katalin and Leovac, Vukadin M. and Tomić, Zoran D. and Pokol, Gyoergy", year = "2007", abstract = "The trinuclear [Zn-3(Hdmpz)(2)(dmpz)(4)(NCS)(2)] complex (Hdmpz: 3,5-dimethylpyrazole) has been synthesized by the reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamidepyrazole. The ammonia evolving gradually from [Zn(NH3)(4)]Cl-2 ensured a mild gradually increasing basic pH during the synthesis which caused a cleavage of the 1-N-substituent. Moreover, the changing pH controlled the pyrazolate anion-neutral ligand equilibrium, and in this way the formation of the precipitate complex. The structure of the complex was investigated by X-ray diffraction and quantum chemical computations. The complex was characterized in detail by FT-IR-spectroscopy and thermal analysis. The bonding interactions between Zn2+ and the ligands were analysed on the basis of the computed data. (c) 2007 Elsevier B.V. All rights reserved.", journal = "Journal of Organometallic Chemistry", title = "Synthesis under self-controlled reaction conditions: Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole", volume = "692", number = "12", pages = "2582-2592", doi = "10.1016/j.jorganchem.2007.03.003" }
Kovacs, A., Meszaros Szecsenyi, K., Leovac, V. M., Tomić, Z. D.,& Pokol, G.. (2007). Synthesis under self-controlled reaction conditions: Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole. in Journal of Organometallic Chemistry, 692(12), 2582-2592. https://doi.org/10.1016/j.jorganchem.2007.03.003
Kovacs A, Meszaros Szecsenyi K, Leovac VM, Tomić ZD, Pokol G. Synthesis under self-controlled reaction conditions: Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole. in Journal of Organometallic Chemistry. 2007;692(12):2582-2592. doi:10.1016/j.jorganchem.2007.03.003 .
Kovacs, Attila, Meszaros Szecsenyi, Katalin, Leovac, Vukadin M., Tomić, Zoran D., Pokol, Gyoergy, "Synthesis under self-controlled reaction conditions: Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole" in Journal of Organometallic Chemistry, 692, no. 12 (2007):2582-2592, https://doi.org/10.1016/j.jorganchem.2007.03.003 . .