Thephysicochemical and biological properties of zinc(II) complexes

Spectroscopic (IR), thermoanalytical (TG/DTG, DTA) and biological methodswere applied to investigate physicochemical and biological properties of sevenzinc(II) complex compounds of the following formula Zn(HCOO) sub(2).2H sub(2)O(I), Zn(HCOO) sub(2).tph (II), Zn(CH sub(3)COO) sub(2).2H sub(2)O (III)...

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Veröffentlicht in:Journal of thermal analysis and calorimetry 2007-05, Vol.88 (2), p.355-361
Hauptverfasser: Szunyogova, Erika, Mudronova, Dagmar, Gyoeryova, Katarina, Nemcova, Radomira, Kovarova, Jana, Piknova-Findorakova, Lenka
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Sprache:eng
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Zusammenfassung:Spectroscopic (IR), thermoanalytical (TG/DTG, DTA) and biological methodswere applied to investigate physicochemical and biological properties of sevenzinc(II) complex compounds of the following formula Zn(HCOO) sub(2).2H sub(2)O(I), Zn(HCOO) sub(2).tph (II), Zn(CH sub(3)COO) sub(2).2H sub(2)O (III), Zn(CH sub(3)COO) sub(2).tph(IV), Zn(CH sub(3)COO) sub(2).2phen(V), Zn(CH sub(3)CH sub(2)COO) sub(2).2H sub(2)O(VI), Zn(CH sub(3)CH sub(2)CH sub(2)COO) sub(2).2H sub(2)O (VII), where tph=theophylline, phen=phenazone. The formation of variousintermediates during thermal decomposition suggests the dependence on thelength of aliphatic carboxylic chain and type of N-donor ligand (tph, phen).The final product of the thermal decomposition was ZnO. The antimicrobialactivity of these complexes were tested against G super(+)and G super(-) bacteria. Strong inhibitive effectwas observed towards E. coli, salmonellaeand Staph. aureus.
ISSN:1388-6150
1572-8943
DOI:10.1007/s10973-006-8115-z