Synthesis under self-controlled reaction conditions

Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole

Attila Kovács, Katalin Mészáros Szécsényi, Vukadin M. Leovac, Zoran D. Tomić, G. Pokol

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The trinuclear [Zn3(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]Cl2 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.

Original languageEnglish
Pages (from-to)2582-2592
Number of pages11
JournalJournal of Organometallic Chemistry
Volume692
Issue number12
DOIs
Publication statusPublished - May 15 2007

Fingerprint

Chlorides
chlorides
Ligands
ligands
synthesis
Ammonia
X-Ray Diffraction
Thermoanalysis
Anions
Precipitates
ammonia
cleavage
precipitates
Infrared spectroscopy
Spectrum Analysis
thermal analysis
Negative ions
Hot Temperature
anions
X ray diffraction

Keywords

  • Crystal growth
  • DFT computations
  • FT-IR
  • Thermal analysis
  • XRD

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)
  • Materials Chemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Biochemistry

Cite this

Synthesis under self-controlled reaction conditions : Reaction of tetraamminezinc(II) chloride with 3,5-dimethyl-1-thiocarboxamide pyrazole. / Kovács, Attila; Szécsényi, Katalin Mészáros; Leovac, Vukadin M.; Tomić, Zoran D.; Pokol, G.

In: Journal of Organometallic Chemistry, Vol. 692, No. 12, 15.05.2007, p. 2582-2592.

Research output: Contribution to journalArticle

Kovács, Attila ; Szécsényi, Katalin Mészáros ; Leovac, Vukadin M. ; Tomić, Zoran D. ; 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 ; Vol. 692, No. 12. pp. 2582-2592.
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