![]() α and SA values have been measured using the dicyano-bis(1,10-phenanthroline) iron( II) complex ( Fe) as HBD probe. In the second part, the Kamlet–Taft π* parameters have been independently determined for several protic ionic liquids using 4- tert-butyl-2-(dicyanomethylene)-5-Δ3-thiazoline ( Th) and N, N-diethyl-4-nitroaniline ( DENA) to show the impact of the hydrogen bond donating ability of the IL on the actual π* values as function of probe. It is assumed that halide anions can have an effect on the E T(30) parameter. First, the influence of anion structure on E T(30) polarity parameters for various ionic liquids are investigated by use of nine differently substituted pyridinio phenolate betaine dyes of the Reichardt type. Several subtasks were carried out to address this main concern. ![]() In this study, the relationships of E T(30) of ionic liquids with the empirical Kamlet–Taft polarity parameters α (hydrogen bond donating ability), β (hydrogen bond accepting ability) and π* (dipolarity/polarizability) as well as Catalán's parameter set SA (solvent acidity), SB (solvent basicity), SP (solvent polarizability) and SdP (solvent dipolarity) are examined by means of multiple square correlation analyses. Reichardt's empirical E T(30) polarity parameter has been established as appropriate polarity scale for ionic liquids. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |