Singh Payal, Rajdeep ; Balasubramanian, Sundaram (2012) Orientational ordering of ionic liquids near a charged mica surface ChemPhysChem, 13 (7). pp. 1764-1771. ISSN 1439-4235
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/cphc.20...
Related URL: http://dx.doi.org/10.1002/cphc.201100871
Abstract
The self-assembly of ions in room-temperature ionic liquids adsorbed on a mica surface is studied using molecular dynamics simulations. Four liquids from the 1-methyl,n-alkylimidazolium bis(trifluoromethylsulfonyl)imide ([Cnmim][NTf2]) family are investigated, where n ranges between 2 and 8. Cations with ethyl or butyl groups are found to orient with the hydrocarbon tails lying parallel to the surface, while the hexyl and octyl tails of cations are observed to be oriented perpendicular to it. The crossover in the orientational preference matches recent observations of surface forces of these liquids.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons, Inc. |
| Keywords: | Orientation Analysis; Ionic Liquids; Molecular Dynamics; Self-Assembly; Mica Surfaces |
| ID Code: | 96722 |
| Deposited On: | 07 Jan 2013 08:55 |
| Last Modified: | 07 Jan 2013 08:55 |
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