Structural, spectroscopic and computational studies of the HgL 2Cl2 complex (L = 3,5-dimethyl-1-thiocarboxamide pyrazole) and the crystal structure of L

Author(s)
Attila Kovács, Denes S. Nemcsok, György Pokol, K. Meszaros Szecsenyi, Vukadin M. Leovac, Zeljko K. Jacimovic, Ivana Radosavljevic Evans, Judith A. K. Howard, Zoran D. Tomic, Gerald Giester
Abstract

In the present paper we report the synthesis as well as the structural and vibrational characterisation of the HgL2Cl2 complex (L = 3,5-dimethyl-1-thiocarboxamide). The crystal and molecular structures of both L and the HgL2Cl2 complex were determined by single-crystal X-ray diffraction. The coordination propensity of L to HgCl2 was explored by quantum chemical calculations. We found the preference of the monodentate coordination of L to HgCl2 through the sulfur atom (instead of the "pyridine" nitrogen) to be in agreement with Pearson's acid-base character of the atoms involved and the steric effects. The vibrational properties of HgL2Cl2 were evaluated by a joint FT-IR and quantum chemical analysis. In addition, the thermal decomposition of the complex and ligand is reported. Œ The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2005.

Organisation(s)
Department of Mineralogy and Crystallography
External organisation(s)
Budapest University of Technology and Economics, University of Novi Sad (UNS), University of Montenegro, Durham University, University of Belgrade
Journal
New Journal of Chemistry
Volume
29
Pages
833-840
No. of pages
8
ISSN
1144-0546
Publication date
2005
Peer reviewed
Yes
Austrian Fields of Science 2012
105113 Crystallography, 1030 Physics, Astronomy
Portal url
https://ucrisportal.univie.ac.at/en/publications/e00ae613-f365-490d-824d-1ab7a7c43510