Number of the records: 1

Synthesis, thermal, spectral, and biological properties of zinc(II) 4-aminobenzoate complexes

SYSNO ASEP	0476288
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Synthesis, thermal, spectral, and biological properties of zinc(II) 4-aminobenzoate complexes
Author(s)	Homzová, K. (SK) Györyová, K. (SK) Hudecová, D. (SK) Koman, M. (SK) Melník, M. (SK) Kovářová, Jana (UMCH-V)_RID
Source Title	Journal of Thermal Analysis and Calorimetry. - : Akadémiai Kiadó - ISSN 1388-6150 Roč. 129, č. 2 (2017), s. 1065-1082
Number of pages	18 s.
Language	eng - English
Country	HU - Hungary
Keywords	zinc(II) 4-aminobenzoate ; thermal ; spectral
Subject RIV	CD - Macromolecular Chemistry
OECD category	Polymer science
Institutional support	UMCH-V - RVO:61389013
UT WOS	000404994900045
EID SCOPUS	85013629959
DOI	10.1007/s10973-017-6184-9
Annotation	New zinc(II) 4-aminobenzoate complex compounds with general formula [Zn(4-NH2benz)2L2]·nH2O, where 4-NH2benz = 4-aminobenzoate, L = nicotinamide (nad), isonicotinamide (inad), N-methylnicotinamide (mnad), thiourea (tu), urea (u), theophylline (tph), and caffeine (caf) were synthesised and characterised by elemental analysis, thermal analysis, and IR spectroscopy. The thermal behaviour of prepared compounds was studied by TG/DTG and DTA methods in argon atmosphere. During the thermal decomposition, organic ligand, carbon monoxide, carbon dioxide, and aniline were evolved. The final solid product of the thermal decomposition was zinc oxide. The volatile gaseous products were proved by mass spectrometry. Solid intermediate product and the final product of thermal decomposition were identified by IR spectroscopy and X-ray powder diffraction method. It was solved crystal structure of polymeric [Zn(4-NH2benz)2], where the coordination environment around zinc(II) atom is an unsymmetrical distorted trigonal bipyramidal with chromophore ZnO3N2. The antimicrobial activity of zinc(II) carboxylate compounds was tested against various strains of bacteria, yeasts, and filamentous fungi (S. aureus, E. coli, C. albicans, R. oryzae, A. alternata, M. gypseum). The presence of zinc in complexes led to the increase their antimicrobial activity in comparison with free 4-aminobenzoic acid and ligands.
Workplace	Institute of Macromolecular Chemistry
Contact	Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
Year of Publishing	2018

Number of the records: 1