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  • 1 Institute of Chemistry, P.J. Šafárik University, Moyzesova 11, 041 54, Košice, Slovak Republic
  • | 2 Institute of Macromolecular Chemistry, AV CR, Heyrovského nám. 2, 162 06, Prague, Czech Republic
  • | 3 Department of Biochemistry and Microbiology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovak Republic
  • | 4 Chemistry Department, Faculty of Science, Cairo University Giza, Giza 12613, A.R. Egypt
  • | 5 Department of Inorganic Chemistry, Slovak Technical University, Radlinského 9, 812 37, Bratislava, Slovak Republik
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Abstract

New zinc(II) 4-bromobenzoate complex compounds with general formula [Zn(4-BrC6H4COO)2L2xH2O (where L = urea, nicotinamide, phenazone or thiourea, x = 0–2) were prepared and characterized by elemental analysis, IR spectroscopy and thermal analysis. The thermal decomposition of hydrated compounds started with dehydration process. During the thermal decomposition, the neutral organic ligand, bis(4-bromophenyl)methanone and carbon dioxide were evolved. The solid intermediates and volatile products of thermal decomposition were proved by IR spectroscopy and mass spectrometry. The final solid product of the thermal decomposition heated up to 800 °C was zinc oxide, which was confirmed by X-ray powder diffractometry. Antimicrobial activity of the prepared compounds was tested against various strains of bacteria, yeasts and filamentous fungi (E. coli, S. aureus, C. albicans, R. oryzae, A. alternata and M. gypseum). It was found that bacterium S. aureus and fungi A. alternata are the most sensitive to the studied compounds.

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  • SJR Hirsch-Index (2019): 87
  • SJR Quartile Score (2019): Q3 Condensed Matter Physics
  • SJR Quartile Score (2019): Q3 Physical and Theoretical Chemistry
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  • SJR Hirsch-Index (2018): 78
  • SJR Quartile Score (2018): Q2 Condensed Matter Physics
  • SJR Quartile Score (2018): Q2 Physical and Theoretical Chemistry

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
4
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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