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Acetohydroxamatoiron(III) complexes : thermodynamics of formation and temperature dependent speciation.

Andrieux, Fabrice P. L. and Boxall, Colin and Taylor, Robin J. (2008) Acetohydroxamatoiron(III) complexes : thermodynamics of formation and temperature dependent speciation. Journal of Solution Chemistry, 37 (11). pp. 1511-1527. ISSN 0095-9782

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    Abstract

    Studies of the thermodynamics of formation of the acetohydroxamatoiron(III) complexes were carried out in acidic media at temperatures ranging from 293 to 323 K. Through the isolation of the unique UV-visible spectra of all three complexes, it was possible to determine their formation constants and deduce enthalpies and entropies of formation as well as their molar absorptivities. The enthalpies of formation of the mono-, bis- and trisacetohydroxamatoiron(III) complexes were found to be -56.4, -17.09 and +19.74 kJ.mol(-1), respectively. Following the determination of the enthalpy and entropy of formation of these complexes, speciation diagrams were calculated for the complexes at temperatures ranging from 293 to 323 K.

    Item Type: Article
    Journal or Publication Title: Journal of Solution Chemistry
    Additional Information: The original publication is available at www.springerlink.com
    Uncontrolled Keywords: Acetohydroxamic acid ; Ferric ions ; Complexation ; Speciation ; Thermodynamic constants ; Molar absorptivity ; HYDROXAMIC ACID COMPLEXANTS ; PLUTONIUM(IV) IONS ; HYDROLYSIS ; AGENTS
    Subjects: T Technology > TA Engineering (General). Civil engineering (General)
    Departments: Faculty of Science and Technology > Engineering
    ID Code: 26525
    Deposited By: Dr Fabrice PL Andrieux
    Deposited On: 27 May 2009 10:30
    Refereed?: Yes
    Published?: Published
    Last Modified: 24 Jan 2014 05:16
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/26525

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