Abstract
(Chemical Equation Presented) A directed assembly process to form C4-symmetric, vanadate-centered quadruplexes, for the first time, from a given chiral oxidovanadium(V) complex allows for highly efficient K + - and Ag + -specific transport from aqueous phase containing three other alkali metal cations into organic solvents, reminiscent of the K + specific transport exerted by four homochiral glycine residues of the opening site in KcsA membrane protein. Copyright © 2008 American Chemical Society.