Liquid crystalline coronene derivatives

The synthesis of liquid crystalline coronenediimides 9 and coronenemonoimide 10 is described in detail and the mesophases are investigated. A large intracolumnar charge carrier mobility of ca. 0.2 cm(2) Vs(-1) has been found for the discotic mesophase of the coronenemonoimide 10 using the pulse-radiolysis time-resolved microwave conductivity technique. The large mobility, together with the room temperature liquid crystallinity, make this compound an attractive candidate for applications as the electron transport layer in molecular electronic devices.