A molecular dynamics study of Al<sup>3+</sup> in water: hydrolysis effects

A molecular dynamics study of Al<sup>3+</sup> in water was performed. A flexible non-constrained central force model for water molecules was used. This permitted one to take into account a tendency of cation hydrolysis effects. We observed strict octahedral arrangement of neighbours in a...

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Main Authors: M.Druchok, M.Holovko, T.Bryk
Format: Article
Language:English
Published: Institute for Condensed Matter Physics 2004-01-01
Series:Condensed Matter Physics
Subjects:
Online Access:http://dx.doi.org/10.5488/CMP.7.4.699
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author M.Druchok
M.Holovko
T.Bryk
author_facet M.Druchok
M.Holovko
T.Bryk
author_sort M.Druchok
collection DOAJ
description A molecular dynamics study of Al<sup>3+</sup> in water was performed. A flexible non-constrained central force model for water molecules was used. This permitted one to take into account a tendency of cation hydrolysis effects. We observed strict octahedral arrangement of neighbours in aluminium cation hydration shell, two of six neighbours being water molecules, the rest four being OH<sup>-</sup> groups that appeared as a consequence of cation hydrolysis. Four created protons leave the first hydration shell and transfer to the second one. Those protons are strongly bonded to cation hydration shell, which implies that total charge of hydration shell does not change. Structural and dynamical features of the obtained hydration shell of Al<sup>3+</sup> are reported.
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spelling doaj.art-8b8b658c9fdb41d283e13cb84f03bcac2022-12-22T01:13:08ZengInstitute for Condensed Matter PhysicsCondensed Matter Physics1607-324X2004-01-017469970710.5488/CMP.7.4.699A molecular dynamics study of Al<sup>3+</sup> in water: hydrolysis effectsM.DruchokM.HolovkoT.BrykA molecular dynamics study of Al<sup>3+</sup> in water was performed. A flexible non-constrained central force model for water molecules was used. This permitted one to take into account a tendency of cation hydrolysis effects. We observed strict octahedral arrangement of neighbours in aluminium cation hydration shell, two of six neighbours being water molecules, the rest four being OH<sup>-</sup> groups that appeared as a consequence of cation hydrolysis. Four created protons leave the first hydration shell and transfer to the second one. Those protons are strongly bonded to cation hydration shell, which implies that total charge of hydration shell does not change. Structural and dynamical features of the obtained hydration shell of Al<sup>3+</sup> are reported.http://dx.doi.org/10.5488/CMP.7.4.699molecular dynamicshydration structurecation hydrolysis
spellingShingle M.Druchok
M.Holovko
T.Bryk
A molecular dynamics study of Al<sup>3+</sup> in water: hydrolysis effects
Condensed Matter Physics
molecular dynamics
hydration structure
cation hydrolysis
title A molecular dynamics study of Al<sup>3+</sup> in water: hydrolysis effects
title_full A molecular dynamics study of Al<sup>3+</sup> in water: hydrolysis effects
title_fullStr A molecular dynamics study of Al<sup>3+</sup> in water: hydrolysis effects
title_full_unstemmed A molecular dynamics study of Al<sup>3+</sup> in water: hydrolysis effects
title_short A molecular dynamics study of Al<sup>3+</sup> in water: hydrolysis effects
title_sort molecular dynamics study of al sup 3 sup in water hydrolysis effects
topic molecular dynamics
hydration structure
cation hydrolysis
url http://dx.doi.org/10.5488/CMP.7.4.699
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AT mholovko amoleculardynamicsstudyofalsup3supinwaterhydrolysiseffects
AT tbryk amoleculardynamicsstudyofalsup3supinwaterhydrolysiseffects
AT mdruchok moleculardynamicsstudyofalsup3supinwaterhydrolysiseffects
AT mholovko moleculardynamicsstudyofalsup3supinwaterhydrolysiseffects
AT tbryk moleculardynamicsstudyofalsup3supinwaterhydrolysiseffects