Twisted Intramolecular Charge Transfer and Aggregation-Induced Emission of BODIPY Derivatives
University of Hong Kong · Hong Kong University of Science and Technology · +1 more institution
Abstract
Boron dipyrromethene (BODIPY) derivatives 1 and 2 consisting of donor and acceptor units with dual photoresponses to solvent polarity and luminogen aggregation are developed through taking advantage of twisted intramolecular charge transfer (TICT) and aggregation-induced emission (AIE) processes. In nonpolar solvents, the locally excited (LE) states of the BODIPY luminogens emit intense green lights. Increasing solvent polarity brings the luminogens from the LE state to the TICT state, causing a large bathochromic shift in the emission color but a dramatic decrease in the emission efficiency. The red emission is greatly boosted by aggregate formation or AIE effect: addition of large amounts of water into the…
Citation impact
- FWCI
- 8.85
- Percentile
- 100%
- References
- 55
Authors
11- RHRongrong HuCorresponding
University of Hong Kong, Hong Kong University of Science and Technology, Universidad de Guanajuato
- ELErik Lager
University of Hong Kong, Universidad de Guanajuato, Hong Kong University of Science and Technology
- AAAngélica Aguilar‐Aguilar
University of Hong Kong, Universidad de Guanajuato, Hong Kong University of Science and Technology
- JLJianzhao Liu
Universidad de Guanajuato, University of Hong Kong, Hong Kong University of Science and Technology
- JWJacky W. Y. Lam
Hong Kong University of Science and Technology, Universidad de Guanajuato, University of Hong Kong
Topics & keywords
- Bathochromic shift
- Intramolecular force
- Photochemistry
- BODIPY
- Chemistry
- Solvent
- Polarity (international relations)
- Aggregation-induced emission
- Clean water and sanitation