83585-76-6Relevant academic research and scientific papers
Hydrophilicity and Complexing Ability of Alkyl Lariat Ethers
Ikeda, I.,Emura, H.,Okahara, M.
, p. 1612 - 1616 (1984)
A series of long chain alkyl lariat ethers were synthesized and their aqueous properties in the absence and presence of alkali metal cations were investigated by measuring their cloud points and complex stability constants.In spite of the presence of ether oxygen(s) in the side chain, complexing abilities toward sodium and potassium cations did not significantly differ from those of the corresponding alkyl crown ethers.As the number of ether oxygens in the side chain of lariat ethers was increased, the water solubilities were much improved and showed high cloud points.However, the degree of salting-in effect decreased and the increment of cloud point caused by addition of salts decreased, probably due to the increase of acyclicity of the polyether molecule.
Neutral Ligands with Surfactant-Type Structure - Synthesis, Complexation, and Ion Transfer
Weber, Edwin
, p. 770 - 801 (2007/10/02)
New lipophilic neutral ligands which combine crown ether and podand characteristics with structural features of surfactants (cf. formulas 1-12, 16-26) were synthesized.Their complexation behaviour was studied, their solid-to-liquid and liquid-to-liquid phase transfer properties as well as their efficiency in ion transport across a liquid model membrane.Crystalline stoichiometric complexes of the cycles 2a-4a and of 3e with NaSCN, Ba(SCN)2, and BaI2 can be isolated.Among the noncyclic representatives a crystalline complex is obtained only from 11 with BaI2.The ligand 8d behaves in aqueous solution as a typical surfactant showing micelle formation and cloud point.
