Synthesis of 1,4-divinylphenyl-bridged triphenylenes and application in OLEDs

The synthesis of 1,4-divinylphenyl-bridged alkyloxy substituted triphenylenes (TpPPVs) based on unsymmetrically substituted triphenylenes and 1,4-dialkyloxyterephthaldialdehydes is described. These compounds are model compounds for the corresponding polymer. The TpPPVs themselves can also be used in OLEDs. Investigations on photoluminescence and the preparation of bright electroluminescent single layer and double layer OLEDs are described.