DSpace logo

Please use this identifier to cite or link to this item: http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14643
Full metadata record
DC FieldValueLanguage
dc.contributor.authorPatra, Satyajit-
dc.date.accessioned2024-04-24T07:00:44Z-
dc.date.available2024-04-24T07:00:44Z-
dc.date.issued2012-10-
dc.identifier.urihttps://pubs.acs.org/doi/full/10.1021/jp3061202-
dc.identifier.urihttp://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14643-
dc.description.abstractThe microscopic structure and dynamics of the room temperature ionic liquids (RTILs) that are responsible for some of the peculiar properties of this class of solvents continue to intrigue the researchers and stimulate new investigations. Herein, we use the fluorescence correlation spectroscopy (FCS) technique to study the diffusion of some probe molecules in RTILs, the results of which, when combined with those obtained from fluorescence lifetime studies, provide insights into the microscopic structural details of this class of novel solvents. Experiments performed with three charged and neutral probe molecules in five carefully selected 1-alkyl-3-methylimidazolium ionic liquids reveal that unlike in conventional solvents these probes exhibit a bimodal diffusion behavior in RTILs thus indicating the presence of two distinct environments. It is found that the contribution of the slow component of the diffusion increases with increasing alkyl chain length of the cation. Not only are these results supported by the biexponential decay behavior of the fluorescence intensity of the systems, but the individual values of the lifetime components and their weight allow determination of the nature of the two major environments. In essence, the results point to the potential of the two combined techniques in unraveling some of the complex features of the ionic liquids.en_US
dc.language.isoenen_US
dc.publisherACSen_US
dc.subjectChemistryen_US
dc.subjectDiffusionen_US
dc.subjectMoleculesen_US
dc.subjectProbesen_US
dc.subjectSaltsen_US
dc.subjectSolventsen_US
dc.titleMicroheterogeneity of Some Imidazolium Ionic Liquids As Revealed by Fluorescence Correlation Spectroscopy and Lifetime Studiesen_US
dc.typeArticleen_US
Appears in Collections:Department of Chemistry

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.