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http://nopr.niscpr.res.in/handle/123456789/9668| Title: | Solvation dynamics and red-edge effect of two electrically charged solutes in an imidazolium ionic liquid |
| Authors: | Khara, Dinesh Chandra Samanta, Anunay |
| Keywords: | Ionic liquids;Solvation dynamics;Time-resolved studies;Fluorescence;Red-edge effect;Fluorescent probes |
| Issue Date: | Jun-2010 |
| Publisher: | CSIR |
| Abstract: | Steady state and time-resolved fluorescence behavior of two electrically charged solutes, viz., negatively charged 1-anilinonaphthalene-8-sulfonate (ANS) and positively charged ethidium bromide (EB), have been studied in an imidazolium ionic liquid. It is found that EB shows a much less pronounced excitation wavelength dependent fluorescence behavior (red-edge effect) as compared to ANS. The solvation dynamics of these probes in [bmim][BF4] is found to be similar to those observed with neutral dipolar probes. A higher solvation time of EB as compared to ANS is possibly a reflection of hydrogen bonding interaction of the former system with the anionic component of the ionic liquid. |
| Page(s): | 714-720 |
| Appears in Collections: | IJC-A Vol.49A(05-06) [May-June 2010] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 49A(05-06) 714-720.pdf | 896.27 kB | Adobe PDF | View/Open |
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