Structural changes in water exposed to electric fields: A molecular dynamics study

作者: M. Druchok , M. Holovko

DOI: 10.1016/J.MOLLIQ.2015.03.032

关键词: HydrolysisChemical physicsMoleculeInorganic chemistryMolecular dynamicsProperties of waterChemistryRange (particle radiation)IonAqueous solutionElectric field

摘要: Abstract The aim of this contribution is to study the changes structural and dynamic properties water molecules exposed electric fields, external ones or generated by ions. For purpose a set molecular dynamics simulations has been performed for series systems modeling aqueous electrolyte solutions pure water. Two Na+ UO22 + ions were considered. presenting fields different strength in range E = (0.25 ÷ 2.5) × 109 V/m. within studied are able slow down even crystallize system. act rather locally but can induce reorientation hydrolysis neighboring molecules.

参考文章(60)
P. Guilbaud, G. Wipff, Hydration of uranyl (UO22+) cation and its nitrate ion and 18-crown-6 adducts studied by molecular dynamics simulations The Journal of Physical Chemistry. ,vol. 97, pp. 5685- 5692 ,(1993) , 10.1021/J100123A037
Steven Spencer, Laura Gagliardi, Nicholas C. Handy, Andrew G. Ioannou, Chris-Kriton Skylaris, Andrew Willetts, Adrian M. Simper, Hydration of UO22+ and PuO22+ Journal of Physical Chemistry A. ,vol. 103, pp. 1831- 1837 ,(1999) , 10.1021/JP983543S
Robert E. Mesmer, Charles F. Baes, The hydrolysis of cations ,(1976)
Igor M. Svishchev, Peter G. Kusalik, Electrofreezing of Liquid Water: A Microscopic Perspective Journal of the American Chemical Society. ,vol. 118, pp. 649- 654 ,(1996) , 10.1021/JA951624L
Michael Morris, Meredith J. T. Jordan, Modeling molecular response in uniform and non-uniform electric fields Journal of Chemical Physics. ,vol. 138, pp. 054111- 054111 ,(2013) , 10.1063/1.4788833
S Tsushima, A Suzuki, Hydration numbers of pentavalent and hexavalent uranyl, neptunyl, and plutonyl Journal of Molecular Structure-theochem. ,vol. 529, pp. 21- 25 ,(2000) , 10.1016/S0166-1280(00)00526-1
T. A. Kunkel, Mutational specificity of depurination Proceedings of the National Academy of Sciences of the United States of America. ,vol. 81, pp. 1494- 1498 ,(1984) , 10.1073/PNAS.81.5.1494
Simone Melchionna, Giovanni Ciccotti, Brad Lee Holian, Hoover NPT dynamics for systems varying in shape and size Molecular Physics. ,vol. 78, pp. 533- 544 ,(1993) , 10.1080/00268979300100371
Jeff Timko, Denis Bucher, Serdar Kuyucak, Dissociation of NaCl in water from ab initio molecular dynamics simulations. Journal of Chemical Physics. ,vol. 132, pp. 114510- 114510 ,(2010) , 10.1063/1.3360310