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The hydrolysis of hydroxamic acid complexants in the presence of non-oxidizing metal ions 3: ferric ions at elevated temperatures

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The hydrolysis of hydroxamic acid complexants in the presence of non-oxidizing metal ions 3: ferric ions at elevated temperatures. / Andrieux, Fabrice; Boxall, Colin; Steele, Helen et al.
In: Journal of Solution Chemistry, Vol. 43, No. 3, 03.2014, p. 608-622.

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Andrieux F, Boxall C, Steele H, Taylor R. The hydrolysis of hydroxamic acid complexants in the presence of non-oxidizing metal ions 3: ferric ions at elevated temperatures. Journal of Solution Chemistry. 2014 Mar;43(3):608-622. doi: 10.1007/s10953-014-0142-y

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@article{f26d2b868796459eb3486b7bb13b14c6,
title = "The hydrolysis of hydroxamic acid complexants in the presence of non-oxidizing metal ions 3: ferric ions at elevated temperatures",
abstract = "The hydrolysis of acetohydroxamic acid (AHA) was investigated both in the absence and presence of ferric ions at the range of temperatures (293–333 K). The data were then analyzed using a previously published mathematical model to determine the Arrhenius factor (A) and activation energy (Ea) of the hydrolysis reactions of free AHA and AHA bound to iron in the form of the monoacetohydroxamatoiron(III) complex. The Arrhenius factor and activation energy were found to be 4.24 9 109 dm3mol-1s-1 and 80.1 kJmol-1 respectively for the hydrolysis of free AHA in solution and 2.44 9 1011 dm3mol-1s-1 and 89.6 kJmol-1 respectively for the hydrolysis of ironbound AHA, suggesting a difference in the mechanism for the hydrolysis of the free and complexed ligand. This was further investigated using quantum mechanical calculations.",
keywords = "Acetohydroxamic acid , Ferric ions, Hydrolysis, Kinetics, High Temperature, Quantum mechanical calculations",
author = "Fabrice Andrieux and Colin Boxall and Helen Steele and Robin Taylor",
year = "2014",
month = mar,
doi = "10.1007/s10953-014-0142-y",
language = "English",
volume = "43",
pages = "608--622",
journal = "Journal of Solution Chemistry",
issn = "0095-9782",
publisher = "Springer New York",
number = "3",

}

RIS

TY - JOUR

T1 - The hydrolysis of hydroxamic acid complexants in the presence of non-oxidizing metal ions 3

T2 - ferric ions at elevated temperatures

AU - Andrieux, Fabrice

AU - Boxall, Colin

AU - Steele, Helen

AU - Taylor, Robin

PY - 2014/3

Y1 - 2014/3

N2 - The hydrolysis of acetohydroxamic acid (AHA) was investigated both in the absence and presence of ferric ions at the range of temperatures (293–333 K). The data were then analyzed using a previously published mathematical model to determine the Arrhenius factor (A) and activation energy (Ea) of the hydrolysis reactions of free AHA and AHA bound to iron in the form of the monoacetohydroxamatoiron(III) complex. The Arrhenius factor and activation energy were found to be 4.24 9 109 dm3mol-1s-1 and 80.1 kJmol-1 respectively for the hydrolysis of free AHA in solution and 2.44 9 1011 dm3mol-1s-1 and 89.6 kJmol-1 respectively for the hydrolysis of ironbound AHA, suggesting a difference in the mechanism for the hydrolysis of the free and complexed ligand. This was further investigated using quantum mechanical calculations.

AB - The hydrolysis of acetohydroxamic acid (AHA) was investigated both in the absence and presence of ferric ions at the range of temperatures (293–333 K). The data were then analyzed using a previously published mathematical model to determine the Arrhenius factor (A) and activation energy (Ea) of the hydrolysis reactions of free AHA and AHA bound to iron in the form of the monoacetohydroxamatoiron(III) complex. The Arrhenius factor and activation energy were found to be 4.24 9 109 dm3mol-1s-1 and 80.1 kJmol-1 respectively for the hydrolysis of free AHA in solution and 2.44 9 1011 dm3mol-1s-1 and 89.6 kJmol-1 respectively for the hydrolysis of ironbound AHA, suggesting a difference in the mechanism for the hydrolysis of the free and complexed ligand. This was further investigated using quantum mechanical calculations.

KW - Acetohydroxamic acid

KW - Ferric ions

KW - Hydrolysis

KW - Kinetics

KW - High Temperature

KW - Quantum mechanical calculations

U2 - 10.1007/s10953-014-0142-y

DO - 10.1007/s10953-014-0142-y

M3 - Journal article

VL - 43

SP - 608

EP - 622

JO - Journal of Solution Chemistry

JF - Journal of Solution Chemistry

SN - 0095-9782

IS - 3

ER -