Claude Chuit, Robert J. P. Corriu, Géraud Dubois and Catherine Reyé
The complexation of alkali metal cations (Na+ and/or K+) by organic–inorganic hybrid materials incorporating dibenzo-18-crown-6 ether moieties covalently linked to silica by two Si–C bonds is explained in terms of deformations of the crown ether moiety during the sol–gel process