Cation assisted complexation of octacarbazolylphenyl substituted Zn(ii)-tetraphenylporphyrin with [2,2,2]cryptand

Abstract

A supramolecular complex formed from a carbazolylphenyl-porphyrin first generation dendrimer and [2,2,2]cryptand was prepared. The influence of alkali metal cations on its formation and some properties were investigated by spectrophotometric and ¹H NMR titration methods. It was established that the complexation occurring between potassium cation and [2,2,2]cryptand affects the complexation between the octacarbazolylphenyl substituted Zn(II)-tetraphenylporphyrin and the cryptand. This on–off behavior can be used in the development of cation assisted molecular switches and polyfunctional materials for chemical sensors and actuators.