Journal
ORGANIC LETTERS
Volume 22, Issue 1, Pages 185-189Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.9b04142
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Funding
- National Nature Science Foundation of China [21672007, 21871006, 21722201, 21790360]
- National Key R&D Program of China [2017YFA0204701]
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A novel type of dibenzothiophene [b]-fused core-expanded azaBODIPYs were obtained through an efficient post-functionalization of tetrabrominated azadipyrro-methenes, using CuI-catalyzed cyclization, followed by BF2 complexation. These dyes show nearly planar skeletons, strong NIR absorption with maximum peaks up to 733 nm, and remarkable low-lying LUMO level of -4.15 eV. The field-effect transistor based on 1b exhibits bipolar transport properties, with the highest electron and hole mobilities up to 0.012 and 0.046 cm(2)V(-1)s(-1) respectively.
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