Stepwise bromination of the triphenylene 1 leads regioselectively to the monobromo and the dibromo compound 2 and 3, respectively (Scheme 1). In contrast to 1 and 2, the dibromo derivative 3 as well as the nitrile 4. obtained from 3 and CuCN, form thermotropic mesophases Dh. On irradiation of 3 and 4 a photocurrent can be measured in the crystalline state and an enhanced photocurrent in the LC phase.