Acid-base equilibria of the Zn(II) and Fe(III) complexes with condensation products of 2-acetylpyridine and the dihydrazide of oxalic and malonic acid

التفاصيل البيبلوغرافية
العنوان:	Acid-base equilibria of the Zn(II) and Fe(III) complexes with condensation products of 2-acetylpyridine and the dihydrazide of oxalic and malonic acid
المؤلفون:	Dražić Branka, Popović Gordana, Jelić Ratomir, Sladić Dušan, Mitić Dragana, Anđelković Katarina, Tešić Živoslav
المصدر:	Journal of the Serbian Chemical Society, Vol 74, Iss 3, Pp 269-277 (2009)
بيانات النشر:	Serbian Chemical Society, 2009.
سنة النشر:	2009
المجموعة:	LCC:Chemistry
مصطلحات موضوعية:	metal complexes, d-metals, hydrazone, acid-base equilibria, potentiometry, Chemistry, QD1-999
الوصف:	Acid-base equilibria of Zn(II) and Fe(III) complexes with N',N'2-bis- [(1E)-1-(2-pyridyl)ethylidene]ethanedihydrazide (ligand L1) and N',N'2-bis[(1E)- -1-(2-pyridyl)ethylidene]propanedihydrazide (ligand L2), i.e., [Fe(L1)Cl2(H2O)], [Fe(L2)Cl(H2O)]2+, [Zn(L1)(H2O)3]+ and [Zn(L2)(H2O)2]2+, which expressed cytotoxic activity, were investigated in aqueous media. The equilibrium constants were determined potentiometrically at 25°C at a constant ionic strength of 0.10 mol/dm3 (Na2SO4). The results showed that at pH < 8 both the Fe(III) complexes studied here have three, while [Zn(L1)(H2O)3]+ and [Zn(L2)(H2O)2]2+ have one and two titratable protons, respectively. Based on the obtained values for the equilibrium constants, protonation schemes of the examined complexes are proposed.
نوع الوثيقة:	article
وصف الملف:	electronic resource
اللغة:	English
تدمد:	0352-5139 1820-7421
Relation:	https://doaj.org/toc/0352-5139; https://doaj.org/toc/1820-7421
DOI:	10.2298/JSC0903269D
URL الوصول:	https://doaj.org/article/c9ccb29414004f4fbf03a9b2e62d85e2
رقم الأكسشن:	edsdoj.9ccb29414004f4fbf03a9b2e62d85e2
قاعدة البيانات:	Directory of Open Access Journals

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الوصف
تدمد:	03525139 18207421
DOI:	10.2298/JSC0903269D