A tetra-substituted chrysene: orientation of multiple electrophilic substitution and use of a tetra-substituted chrysene as a blue emitter for OLEDs

摘要

The first tetra-substituted non-fused chrysene, 3,6,9,12-tetra-kis(4-tert-butylphenyl)chrysene 7 with blue electroluminescence at 450 nm, and with a radiance of 500 cd m~(-2), was synthesized by a two-step procedure: direct bromination of chrysene in trim