Ionic association in oligo(ethylene glycol)-lithium triflat solutions as studied by FT Raman spectroscopy
| Autor: | Jens Tübke, S. Shashkov, S. Wartewig, B. Sandner |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
chemistry.chemical_classification
Ft raman spectroscopy chemistry.chemical_element Salt (chemistry) Concentration effect Ionic bonding General Chemistry Condensed Matter Physics Oligomer chemistry.chemical_compound Sulfonate chemistry Organic chemistry General Materials Science Lithium Ethylene glycol Nuclear chemistry |
| Zdroj: | Solid State Ionics. 83:87-97 |
| ISSN: | 0167-2738 |
| DOI: | 10.1016/0167-2738(95)00223-5 |
| Popis: | The symmetric stretching mode of the SO 3 groups and the LiO breathing mode of LiCF 3 SO 3 in oligo(ethylene glycol) n dimethylethers (EG) n DME with n = 2, 3 and 11 as well as oligo(ethylene glycol) 9 dicyano acetate ((EG) 9 DCA) were studied as a function of ether oxygen to lithium ratio and temperature by means of FT Raman spectroscopy. The ratios of free anions, ion pairs and higher aggregated ionic species were quantitatively determined. The part of free anions decreases with increasing salt concentration and with increasing temperature. It is higher with (EG) n DME n = 11 than with n = 2 and 3 as well as with (EG) 9 DCA than with (EG) 11 DME. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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