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Molecules 2013, 18(4), 3703-3711; doi:10.3390/molecules18043703
Article

Probing Ionic Liquid Aqueous Solutions Using Temperature of Maximum Density Isotope Effects

1,* , 1, 1 and 1,2,*
1 Instituto de Tecnologia Química e Biológica (www.itqb.unl.pt), Universidade Nova de Lisboa, Av. da República, Oeiras 2780-157, Portugal 2 Centro de Química Estrutural, Instituto Superior Tecnico, Lisboa 1049-001, Portugal
* Authors to whom correspondence should be addressed.
Received: 29 January 2013 / Revised: 6 March 2013 / Accepted: 15 March 2013 / Published: 25 March 2013
(This article belongs to the Special Issue Isotope Effects)
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Abstract

This work is a new development of an extensive research program that is investigating for the first time shifts in the temperature of maximum density (TMD) of aqueous solutions caused by ionic liquid solutes. In the present case we have compared the shifts caused by three ionic liquid solutes with a common cation—1-ethyl-3-methylimidazolium coupled with acetate, ethylsulfate and tetracyanoborate anions—in normal and deuterated water solutions. The observed differences are discussed in terms of the nature of the corresponding anion-water interactions.
Keywords: water TMD; ionic liquids; isotope effects water TMD; ionic liquids; isotope effects
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Tariq, M.; Esperança, J.M.S.S.; Rebelo, L.P.N.; Lopes, J.N.C. Probing Ionic Liquid Aqueous Solutions Using Temperature of Maximum Density Isotope Effects. Molecules 2013, 18, 3703-3711.

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