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Synthesis of Isomeric Perylenodithiophene Diimides
- Zeng, Cheng, Meng, Dong, Jiang, Wei, Wang, Zhaohui
- Organic letters 2018 v.20 no.20 pp. 6606-6609
- absorption, chemical structure, dimerization, dyes, organic compounds
- Two isoelectronic dithiophene-fused perylene diimides (PDTI-1 and PDTI-2) were synthesized via a “bay-derivatization toward lateral extension” strategy. Single-crystal analysis unambiguously confirmed their unique structures and packing arrangements. The new PDTI system manifested significantly red-shifted absorptions with intense bands at 500–700 nm. Further dimerization indicated the potential of these dithiophene-fused PDIs as new building blocks for the construction of versatile rylene dyes in optoelectronic devices.