Liquid crystalline coronene derivatives

The synthesis of liquid crystalline coronenediimides 9 and coronenemonoimid e 10 is described in detail and the mesophases are investigated. A large in tracolumnar 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-radi olysis 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 i n molecular electronic devices.