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Research Journals >
Indian Journal of Chemistry -Section A (IJC-A) >
IJC-A Vol.49A [2010] >
IJC-A Vol.49A(05-06) [May-June 2010] >
| Title: | Temperature dependent solvation dynamics in an ionic liquid containing microemulsions of 1-butyl-3-methylimidazolium tetrafluoroborate/Triton X–100/cyclohexane |
| Authors: | Pramanik, Rajib
Sarkar, Souravi
Ghatak, Chiranjib
Setua, Palash
Rao, Vishal Govind
Sarkar, Nilmoni |
| Keywords: | Ionic liquids
Time-resolved emission spectra
Time-resolved anisotropy
Solvation dynamics
Microemulsions |
| Issue Date: | May-2010 |
| Publisher: | CSIR |
| Abstract: | A study of the temperature-dependent
solvation dynamics of coumarin-480 in [bmim][BF4]/Triton X-100/cyclohexane
microemulsions at three different temperatures (299 K, 308 K and 317 K) is
reported. The solvation dynamics of a room temperature ionic liquid in
microemulsions becomes faster with increase in temperature. Dynamic light
scattering measurements indicate a significant change in size with temperature
for microemulsion systems with the hydrodynamic diameter decreasing with
increase in temperature. Time-resolved fluorescence anisotropy studies reveal a
decrease in the rotational restriction on the probe with increasing
temperature. Wobbling-in-cone analysis of the anisotropy data also supports
this finding. |
| Page(s): | 695-704 |
| Source: | IJC-A Vol.49A(05-06) [May-June 2010]
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