prikaz prve stranice dokumenta Kinetics of the formation and hydrolysis of (desferrioxamine B) aluminium (III) and gallium(lII) complexes in acidic aqueous perchlorate solutions
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Scientific paper - Original scientific paper
Kinetics of the formation and hydrolysis of (desferrioxamine B) aluminium (III) and gallium(lII) complexes in acidic aqueous perchlorate solutions
Croatica Chemica Acta, 66 (1993), 2; 373-383. urn:nbn:hr:163:088830
Batinić-Haberle, Ines; Biruš, Mladen; Imper-Vuletić, Vera; Spasojević, Ivan

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Batinić Haberle, I., Biruš, M., Imper Vuletić, V. & Spasojević, I. (1993). Kinetics of the formation and hydrolysis of (desferrioxamine B) aluminium (III) and gallium(lII) complexes in acidic aqueous perchlorate solutions. Croatica Chemica Acta, 66. (2), 373-383. Retrieved from https://urn.nsk.hr/urn:nbn:hr:163:088830

Batinić Haberle, Ines, et al. "Kinetics of the formation and hydrolysis of (desferrioxamine B) aluminium (III) and gallium(lII) complexes in acidic aqueous perchlorate solutions." Croatica Chemica Acta, vol. 66, no. 2, 1993, pp. 373-383. https://urn.nsk.hr/urn:nbn:hr:163:088830

Batinić Haberle, Ines, Mladen Biruš, Vera Imper Vuletić and Ivan Spasojević. "Kinetics of the formation and hydrolysis of (desferrioxamine B) aluminium (III) and gallium(lII) complexes in acidic aqueous perchlorate solutions." Croatica Chemica Acta 66, no. 2 (1993): 373-383. https://urn.nsk.hr/urn:nbn:hr:163:088830

Batinić Haberle, I., et al. (1993) 'Kinetics of the formation and hydrolysis of (desferrioxamine B) aluminium (III) and gallium(lII) complexes in acidic aqueous perchlorate solutions', Croatica Chemica Acta, 66(2), pp. 373-383. Available at: https://urn.nsk.hr/urn:nbn:hr:163:088830 (Accessed 27 December 2024)

Batinić Haberle I, Biruš M, Imper Vuletić V, Spasojević I. Kinetics of the formation and hydrolysis of (desferrioxamine B) aluminium (III) and gallium(lII) complexes in acidic aqueous perchlorate solutions. Croatica Chemica Acta [Internet]. 1993 [cited 2024 December 27];66(2):373-383. Available at: https://urn.nsk.hr/urn:nbn:hr:163:088830

I. Batinić Haberle, M. Biruš, V. Imper Vuletić and I. Spasojević, "Kinetics of the formation and hydrolysis of (desferrioxamine B) aluminium (III) and gallium(lII) complexes in acidic aqueous perchlorate solutions", Croatica Chemica Acta, vol. 66, no. 2, pp. 373-383, 1993. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:163:088830. [Accessed: 27 December 2024]

Metadata
Title (english)Kinetics of the formation and hydrolysis of (desferrioxamine B) aluminium (III) and gallium(lII) complexes in acidic aqueous perchlorate solutions
AuthorInes Batinić-Haberle
AuthorMladen Biruš
AuthorVera Imper-Vuletić
MBZ: 45926
AuthorIvan Spasojević
Author's institutionUniversity of Zagreb
Faculty of Pharmacy and Biochemistry
(Department of general and inorganic chemistry)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Inorganic Chemistry
Abstract (english)
The kinetics of complexation of desferrioxamine B with M (M = Al(III) and Ga(III) in acidic aqueous perchlorate solutions at 25 °C and 2 M ionic strength are reported. The pseudo-first order complex formation and hydrolysis reactions were followed spectrophotometrically in the UV region. For both metals, a parallel-path mechanism, in which the M(H2Ü)|+ and M(H20)5(OH)2+ ions react with the fully protonated ligand (H4dfb+) to form M(H20)4(H3dfb)3+ complexes, is operative. The calculated formation rate constants for unhydrolyzed and hydrolyzed Al(III) ions are 0.0211(17) s_1 M*1 and 189(3) s-1 M_1, whereas for Ga(III) are 5.45(77) s-1 M-1 and 2.15(3) • 104 s-1 M-1, respectively. For the reaction of H4dfb+ with the unhydrolyzed Al(III) and Ga(III) ions, enthalpies and entropies of activation are: 97.6 ± 8.2 kJ mol-1, 52.5 ± 2.9 J K-1 mol-1, and 87.2 ± 7.2 kJ mol'1, 71.3 ± 2.9 J K_1 mol-1, respectively. The results are discussed in terms of a model in which the loss of the first water molecule coordinated to the metal ions is the rate determining step. The obtained ca. 104 times higher reactivities of the hydrolyzed than the unhydrolyzed metal ions are consistent with the dissociative (Eigen) mechanism.
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleCroatica Chemica Acta
Numberingvol. 66, no. 2, pp. 373-383
p-ISSN0011-1643
e-ISSN1334-417X
URN:NBNurn:nbn:hr:163:088830
Publication1993
Document URLhttps://hrcak.srce.hr/137070
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-04-29 15:25:45