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论文类型： 期刊论文

发表时间： 2013-06-07

发表刊物： JOURNAL OF ORGANIC CHEMISTRY

收录刊物： SCIE、EI、PubMed、Scopus

卷号： 78

期号： 11

页面范围： 5544-5549

ISSN号： 0022-3263

摘要： Multifunctional building blocks 8 and 9 were efficiently synthesized by fusing a perylene-3,4,9,10-tetracarboxylic acid bisimide (PBI) core with o-phenylenediamine, and they were condensed with a pyrenedione and a pyrenetetraone, respectively, to construct new ladder-type conjugated oligomers 12 and 13. In the key photocyclization step, an unusual regioselectivity at the position ortho to the nitro group was discovered in the coupling of the o-nitroaniline functional units at the bay sites of PBI. Bulk-heterojunction solar cells based on 12 and 13 as the acceptors exhibited reasonable performance.