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Erika Szunyogová Katarína Györyová Daniela Hudecová Lenka Piknová J. Chomič Zuzanna Vargová V. Zeleňák 《Journal of Thermal Analysis and Calorimetry》2007,88(1):219-223
The thermal decomposition of the complexes Zn(form)2⋅2phen
(I), Zn(ac)2⋅2phen
(II), Zn(prop)2⋅2phen
(III), Zn(but)2⋅2phen
(IV), where phen=phenazone, form=formiate,
ac=acetate, prop=propionate, but=butyrate has been studied in air by TG/DTG
and DTA methods. The possible mechanism of the thermal decomposition was proposed.
The final product of thermal decomposition was ZnO. IR data show unidentate
coordination of carboxylate group to Zn(II) ion. The complexes were tested
against various strains of microorganisms and their efficiency decrease in
the sequence yeasts >bacteria>filamentous fungi. 相似文献
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Györyová K. Kovářová J. Andogová E. Zeleňák V. Nour El-Dien F. A. 《Journal of Thermal Analysis and Calorimetry》2002,67(1):119-128
Zinc carboxylate complexes with N-donor ligands exhibit antimicrobial and antifungal effects. The preparation and thermal properties of complex compounds Zn(isobut)2 and Zn(isobut)2L(isobut=(CH3)2CHCOO–, L=papaverine — pap, phenazone — phen) are described in this paper. The newly synthesized compounds were characterized by elemental analysis, IR spectroscopy and TG/DTG, DTA methods.During the thermal treatment it was found that the release of organicligands (pap, phen) was followed by pyrolysis of zinc(II) isobutyrate. (C3H7)2CO and CO2 were found as gaseous products and zinc oxide as the final product of thermal decomposition. Gaseous and solid products of thermal decomposition were confirmed by chemical analysis, IR spectra and X-ray powder diffraction.This revised version was published online in November 2005 with corrections to the Cover Date. 相似文献
3.
K. Györyová J. Kovářová M. Melník E. Andogová 《Journal of Thermal Analysis and Calorimetry》1999,56(2):503-511
New zinc bromobutyrate complexes of general formula ZnX2·1−L·nH2O (X=CH2Br(CH2)2COO−; CH3CH2CHBrCOO−) containing one or two molecules of caffeine, nicotin-amide and phenazone as ligands (L) were prepared.
The compounds were characterized by MS-, IR- spectroscopy, chemical and thermal analysis. The thermal decomposition of hydrated
compounds starts by the release of water molecules. In anhydrous compounds the loss of organic ligands takes place followed
by the decomposition of the bromobutyrate anion at higher temperatures. Zinc bromide was found among the final products of
thermal decomposition. Water, carbon monoxide, propylaldehyde, vinylaldehyde and formaldehyde were detected in the gaseous
products of the thermally decomposed samples on heating up to 700°C.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
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