Nido-Carboranes: Donors for Thermally Activated Delayed Fluorescence
- Title
- Nido-Carboranes: Donors for Thermally Activated Delayed Fluorescence
- Author
- 이상욱
- Keywords
- AIE; donor-acceptor systems; nido-carborane; thermally activated delayed fluorescence; triarylborane
- Issue Date
- 2018-09
- Publisher
- John Wiley & Sons Ltd.
- Citation
- Angewandte Chemie - International Edition, v. 57.0, NO. 38, Page. 12483-12488
- Abstract
- An approach to the design of nido-carborane-based luminescent compounds that can exhibit thermally activated delayed fluorescence (TADF) is proposed. 7,8-Dicarba-nido-undecaboranes (nido-carboranes) having various 8-R groups (R = H, Me, i-Pr, Ph) are appended to the meta or para position of the phenyl ring of the dimesitylphenylborane (PhBMes(2)) acceptor, forming donor-acceptor compounds (nido-m1-m4 and nido-p1-p4). The bulky 8-R group and meta substitution of the nido-carborane are essential to attain a highly twisted arrangement between the donor and acceptor moieties, leading to a very small energy splitting between the singlet and triplet excited states (Delta E-ST < 0.05eV for nido-m2, -m3, and -p3). These compounds exhibit efficient TADF with microsecond-range lifetimes. In particular, nido-m2 and -m3 display aggregation-induced emission (AIE) with TADF properties.
- URI
- https://onlinelibrary.wiley.com/doi/10.1002/anie.201806922https://repository.hanyang.ac.kr/handle/20.500.11754/177512
- ISSN
- 1433-7851;1521-3773
- DOI
- 10.1002/anie.201806922
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > CHEMICAL AND MOLECULAR ENGINEERING(화학분자공학과) > Articles
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