Počet záznamů: 1
Synthesis, thermal, spectral, and biological properties of zinc(II) 4-aminobenzoate complexes
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SYSNO ASEP 0476288 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Synthesis, thermal, spectral, and biological properties of zinc(II) 4-aminobenzoate complexes Tvůrce(i) Homzová, K. (SK)
Györyová, K. (SK)
Hudecová, D. (SK)
Koman, M. (SK)
Melník, M. (SK)
Kovářová, Jana (UMCH-V) RIDZdroj.dok. Journal of Thermal Analysis and Calorimetry. - : Akadémiai Kiadó - ISSN 1388-6150
Roč. 129, č. 2 (2017), s. 1065-1082Poč.str. 18 s. Jazyk dok. eng - angličtina Země vyd. HU - Maďarsko Klíč. slova zinc(II) 4-aminobenzoate ; thermal ; spectral Vědní obor RIV CD - Makromolekulární chemie Obor OECD Polymer science Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000404994900045 EID SCOPUS 85013629959 DOI 10.1007/s10973-017-6184-9 Anotace 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. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2018
Počet záznamů: 1