title: Facile synthesis of a pyrrole-fused dibenzo[a,e]pentalene and its application as a new extended, ladder-type fused aromatic system.
abstract: A novel ladder-type pyrrole-fused dibenzo[a,e]pentalene, in which two benzo[a,e]pentalene units are held coplanar by a nitrogen bridge, is synthesized via double intermolecular Pd-catalyzed cascade crossover annulations. The introduction of a nitrogen bridge not only has a substantial influence on the optoelectronic properties but also improves the processability and stability.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China. yanli@iccas.ac.cn wangzhaohui@iccas.ac.cn.
authors.forename: Cheng
authors.initials: C
authors.lastname: Li
authors.forename: Chunming
authors.initials: C
authors.lastname: Liu
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Xiaozhang
authors.initials: X
authors.lastname: Zhu
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Wang