Abstract
We present a new class of blue circularly polarized luminescent emitters based on tetraarylaminoborane (TAAB) with considerable dissymmetry factor in the solid state. The chiral pendant 1-phenylethylamine in BN-RR and BN-SS imparts chirality to the core chromophore, resulting in circularly polarized luminescence signals (glum = 0.8 × 10-3) with a quantum yield of 33% in the crystalline state. This novel set of compounds also showcases intriguing thermally reversible piezochromism.
| Original language | English |
|---|---|
| Pages (from-to) | 6067-6071 |
| Number of pages | 5 |
| Journal | Organic Letters |
| Volume | 25 |
| Issue number | 32 |
| DOIs | |
| State | Published - 18 Aug 2023 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2023 American Chemical Society.
Funding
P.T. thanks the Science and Engineering Research Board (SERB) (New Delhi, India) and IISc Bangalore for financial support. N.K.K. and P.S. thank SERB (New Delhi, India) for financial support. J.E. acknowledges support from the Prime Minister Research Fellowship (PMRF). Y.I. thanks JSPS KAKENHI (JP23H02040) and JST CREST (JPMJCR 2001) for financial support. The authors thank Prof. A. T. Biju (IISc Bangalore) for providing the HPLC facility and Shilpa Barik (IISc Bangalore) for doing the measurements.
| Funders | Funder number |
|---|---|
| Prime Minister Research Fellowship | |
| Indian Institute of Science | |
| Japan Society for the Promotion of Science | JP23H02040 |
| Science and Engineering Research Board | |
| Core Research for Evolutional Science and Technology | JPMJCR 2001 |