| Autor: |
Bernardes CE; Centro de Quimica Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Portugal., Shimizu K, Lopes JN, Marquetand P, Heid E, Steinhauser O, Schröder C |
| Jazyk: |
angličtina |
| Zdroj: |
Physical chemistry chemical physics : PCCP [Phys Chem Chem Phys] 2016 Jan 21; Vol. 18 (3), pp. 1665-70. Date of Electronic Publication: 2015 Dec 17. |
| DOI: |
10.1039/c5cp06595j |
| Abstrakt: |
An extended designed regression analysis of experimental data on density and refractive indices of several classes of ionic liquids yielded statistically averaged atomic volumes and polarizabilities of the constituting atoms. These values can be used to predict the molecular volume and polarizability of an unknown ionic liquid as well as its mass density and refractive index. Our approach does not need information on the molecular structure of the ionic liquid, but it turned out that the discrimination of the hybridization state of the carbons improved the overall result. Our results are not only compared to experimental data but also to quantum-chemical calculations. Furthermore, fractional charges of ionic liquid ions and their relation to polarizability are discussed. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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