Title of article :
Cation- and solvent-induced conformational changes of 25,27-dimethoxy-26,28-dimethylester-p-tert-butylcalix[4]arene
Author/Authors :
Oueslati، نويسنده , , Issam and Abidi*، نويسنده , , Rym and Amri، نويسنده , , Hassen and Thuéry، نويسنده , , Pierre and Nierlich، نويسنده , , Martine and Asfari، نويسنده , , Zouhair and Harrowfield، نويسنده , , Jack and Vicens، نويسنده , , Jacques، نويسنده ,
Abstract :
The synthesis of 25,27-dimethoxy-26,28-dimethylacetate-p-tert-butylcalix[4]arene is presented. Complexation studies towards alkali metal cations showed selectivities for Na+ and Li+. Different conformations for the 1:1 complexes are detected depending on the solvent used. X-ray structures of the ligand and some complexes are given.
