Abstract
A novel ditopic receptor possessing two complexation sites such as crown ether and (ethoxycarbonyl) methoxy groups bearing 1,3-alternate conformation based on thiacalix[4]arene was prepared. The binding behaviours with alkali metals have been examined by
1
H NMR titration experiment. The exclusive formation of the heterogeneous dinuclear complexes of 1,3-alternate-3 with Li
+
and K
+
was observed.