prikaz prve stranice dokumenta Iron(III) complexation by hydroxyurea in acidie aqueous perchlorate solution
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Scientific paper - Original scientific paper
Iron(III) complexation by hydroxyurea in acidie aqueous perchlorate solution
Croatica Chemica Acta, 61 (1988), 1; 21-31. urn:nbn:hr:163:866907
Bedrica, A.; Biruš, M.; Kujundžić, N.; Pribanić, M.

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Bedrica, A., Biruš, M., Kujundžić, N. & Pribanić, M. (1988). Iron(III) complexation by hydroxyurea in acidie aqueous perchlorate solution. Croatica Chemica Acta, 61. (1), 21-31. Retrieved from https://urn.nsk.hr/urn:nbn:hr:163:866907

Bedrica, A., et al. "Iron(III) complexation by hydroxyurea in acidie aqueous perchlorate solution." Croatica Chemica Acta, vol. 61, no. 1, 1988, pp. 21-31. https://urn.nsk.hr/urn:nbn:hr:163:866907

Bedrica, A., M. Biruš, N. Kujundžić and M. Pribanić. "Iron(III) complexation by hydroxyurea in acidie aqueous perchlorate solution." Croatica Chemica Acta 61, no. 1 (1988): 21-31. https://urn.nsk.hr/urn:nbn:hr:163:866907

Bedrica, A., et al. (1988) 'Iron(III) complexation by hydroxyurea in acidie aqueous perchlorate solution', Croatica Chemica Acta, 61(1), pp. 21-31. Available at: https://urn.nsk.hr/urn:nbn:hr:163:866907 (Accessed 27 December 2024)

Bedrica A, Biruš M, Kujundžić N, Pribanić M. Iron(III) complexation by hydroxyurea in acidie aqueous perchlorate solution. Croatica Chemica Acta [Internet]. 1988 [cited 2024 December 27];61(1):21-31. Available at: https://urn.nsk.hr/urn:nbn:hr:163:866907

A. Bedrica, M. Biruš, N. Kujundžić and M. Pribanić, "Iron(III) complexation by hydroxyurea in acidie aqueous perchlorate solution", Croatica Chemica Acta, vol. 61, no. 1, pp. 21-31, 1988. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:163:866907. [Accessed: 27 December 2024]

Metadata
Title (english)Iron(III) complexation by hydroxyurea in acidie aqueous perchlorate solution
AuthorA. Bedrica
AuthorM. Biruš
AuthorN. Kujundžić
AuthorM. Pribanić
MBZ: 38805
Author's institutionUniversity of Zagreb
Faculty of Pharmacy and Biochemistry
(Department of analytical chemistry)
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
Abstract (english)
Equilibrium and kinetic studies were performed to investigate the complexation of aqueous high spin iron(III) by hydroxyurea H2NC(O)NH(OH) in acidie solutions at 25 <c and I = 2.0 mol dm? (maintained by NaC104). Complexation has been interpreted in terms of coordination of the N-O oxygen atom and the NH2 nitrogen atom of the ligand to the iron(III) ion with concomitant loss of a proton yielding the complex of the molar ratio 1 :1. The equilibrium quotient for the formation of mono(hydroxyureato)iron (III) complex is found to be Kl = 1.4. The kinetic results suggest a parallel path mechanism involving substitution on Fe(H20)63+ and Fe(H20l50H2+ by the hydroxyurea, HU: Fe (HzO)63+ + HU ;;= Fe (HzO)4 U2++ H+ Fe (H20)s (OH)2++ HU;;=' Fe (HzO)4 U2' The formation of the complex occurs by the rate constants kl = 16.8 M-l S-I and k1' = 5450 M" S-I. The analogous rate eonstants for the reverse hydrolysis reactions were obtained as k-l = = 11.8 M-l S-I and k_1' = 6.3 S-I. The results are compared with kinetic data previously reported for the different mono(hydroxamato) iron(III) complexes.
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleCroatica Chemica Acta
Numberingvol. 61, no. 1, pp. 21-31
p-ISSN0011-1643
e-ISSN1334-417X
URN:NBNurn:nbn:hr:163:866907
Publication1988
Document URLhttps://hrcak.srce.hr/175867
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-04-30 11:10:43