Experimental signature of microheterogeneity in ionic liquid-H2O systems and their perturbation by adding Li+ salts: a pulsed gradient spin-echo NMR approach
Title | Experimental signature of microheterogeneity in ionic liquid-H2O systems and their perturbation by adding Li+ salts: a pulsed gradient spin-echo NMR approach |
Publication Type | Journal Article |
Year of Publication | 2015 |
Authors | Nanda, R, Rajamohanan, PR, Kumar, A |
Journal | Chemphyschem |
Volume | 16 |
Issue | 14 |
Pagination | 2936-2941 |
Date Published | OCT |
ISSN | 1439-4235 |
Keywords | ionic liquids, lithium, microheterogeneity, salt effect, viscosity |
Abstract | Distinct microheterogeneity has been observed in the [OMIM]Br-H2O system, which is interestingly perturbed by the addition of Li+ salts, indicating unusual diffusivity of [OMIM]Br and H2O molecules. However, the diffusional dynamics of water clusters show contrasting salting behavior at higher concentrations of Li+ salts, following the classical salting phenomenon in lower amounts. In contrast, the existing microheterogeneity in the [BMIM]Br-H2O system is weak enough to show any perturbation caused by the Li+ salts on the NMR time scale. |
DOI | 10.1002/cphc.201500503 |
Type of Journal (Indian or Foreign) | Foreign |
Impact Factor (IF) | 3.138 |
Divison category:
Central NMR Facility
Physical and Materials Chemistry