Co(II) sensing molecular assembly of tetracyanoquinodimethane and hydroxyquinoline based on charge-transfer interactions

摘要

A novel charge-transfer molecular assembly formed by electron-acceptor tetracyanoquinone and electron-donor hydroxyquinoline via charge-transfer interactions has been developed as a selective sensor for Co(II). Based on obvious absorption changes, cobalt can be determined in the range from 2.5 x 10(-6) mol L-1 to 1.5 x 10(-5) mol L-1 with a detection limit of 3.1 x 10(-7) mol L-1 at pH 7.0.