Bromination Improves the Electron Mobility of Tetraazapentacene.
Hilmar ReissLei JiJie HanSilke KoserOlena TverskoyJan FreudenbergFelix HinkelMichael MoosAlexandra FriedrichIvo KrummenacherChristoph LambertHolger BraunschweigAndreas DreuwTodd B MarderUwe H F BunzPublished in: Angewandte Chemie (International ed. in English) (2018)
A cyclocondensation of TIPS-ethynyl-substituted diaminoarenes with in situ obtained 4,5-dibromocyclohexa-3,5-diene-1,2-dione has led to the synthesis of tetrabromotetraazapentacene (BrTAP). BrTAP is easily reduced to its air-stable radical anion and electron mobilities >0.56 cm2 V-1 s-1 can be achieved in thin-film transistors.