Kamlet−Taft Solvatochromic Parameters of the Sub- and Supercritical Fluorinated Ethane Solvents

摘要: The Kamlet−Taft parameters describing the dipolarity-polarizability, π*, and hydrogen bond acceptor ability, β, for ethane six fluorinated solvents in sub- supercritical region of phase diagram were measured using solvatochromic probe molecules. ultraviolet electronic transitions probes a given solvent fitted to third-order polynomials density all isotherms investigated. values π* β calculated each as function density. Trends related degree fluorination about molecule, while average negative interpreted an inability on part act acceptors.