Nido-Carboranes: Donors for Thermally Activated Delayed Fluorescence
- Authors
- Nguyen Van Nghia; Jana, Saibal; Sujith, Surendran; Ryu, Ji Yeon; Lee, Junseong; Lee, Sang Uck; Lee, Min Hyung
- Issue Date
- Sep-2018
- Publisher
- John Wiley & Sons Ltd.
- Keywords
- AIE; donor-acceptor systems; nido-carborane; thermally activated delayed fluorescence; triarylborane
- Citation
- Angewandte Chemie - International Edition, v.57, no.38, pp 12483 - 12488
- Pages
- 6
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Angewandte Chemie - International Edition
- Volume
- 57
- Number
- 38
- Start Page
- 12483
- End Page
- 12488
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/5628
- DOI
- 10.1002/anie.201806922
- ISSN
- 1433-7851
1521-3773
- 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.
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Collections - COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY > DEPARTMENT OF CHEMICAL AND MOLECULAR ENGINEERING > 1. Journal Articles
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