Fluorescence correlation spectroscopy study on room-temperature ionic liquids
| Autor: | Doseok Kim, Seoncheol Cha |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Number density
Materials science Analytical chemistry General Physics and Astronomy Fluorescence correlation spectroscopy Fluorescence Fluorescence spectroscopy Condensed Matter::Soft Condensed Matter Viscosity chemistry.chemical_compound chemistry Ionic liquid Physics::Atomic and Molecular Clusters Visible range lipids (amino acids peptides and proteins) Two-dimensional nuclear magnetic resonance spectroscopy |
| Zdroj: | Journal of the Korean Physical Society. 61:1555-1559 |
| ISSN: | 1976-8524 0374-4884 |
| DOI: | 10.3938/jkps.61.1555 |
| Popis: | Unique fluorescence behavior was reported in room-temperature ionic liquids having imidazolium cations. Due to the molecular electronic energy level of the imidazolium cation, fluorescence in the visible range from pure ionic liquids is not expected, but was readily observed. Fluorescence correlation spectroscopy (FCS) was used to find the nature of this unique fluorescence by investigating the fluorescence fluctuation and the number density of fluorophores. FCS signal was observed in pure room-temperature ionic liquids having different cations and anions, which is considered to come from the molecular aggregate of room-temperature ionic liquid. The size and the number density of aggregates in pure ionic liquids were measured by using FCS. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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