Synthesis and photoluminescent properties of geometrically hindered cis-tris(diphenylaminofluorene) as precursors to light-emitting devices
Kang, NG; Kokubo, K; Jeon, S; Wang, M; Lee, CL; Canteenwala, T; Tan, LS; Chiang, LY
HERO ID
2902175
Reference Type
Journal Article
Year
2015
Language
English
PMID
| HERO ID | 2902175 |
|---|---|
| In Press | No |
| Year | 2015 |
| Title | Synthesis and photoluminescent properties of geometrically hindered cis-tris(diphenylaminofluorene) as precursors to light-emitting devices |
| Authors | Kang, NG; Kokubo, K; Jeon, S; Wang, M; Lee, CL; Canteenwala, T; Tan, LS; Chiang, LY |
| Journal | Molecules |
| Volume | 20 |
| Issue | 3 |
| Page Numbers | 4635-4654 |
| Abstract | A novel highly luminescent tris-fluorenyl ring-interconnected chromophore tris(DPAF-C9) was synthesized using a C3 symmetrical triaminobenzene core as the synthon. This structure bears three light-harvesting 2-diphenylamino-9,9-dialkylfluorenyl (DPAF) ring moieties with each attached by two branched 3',5',5'-trimethylhexyl (C9) arms. A major stereoisomer was chromatographically isolated and characterized to possess a 3D structural configuration of cis-conformer in a cup-form. Molecular calculation at B3LYP/6-31G* level revealed the unexpected stability of this cis-cup-conformer of tris(DPAF-C9) better than that of the stereoisomer in a propeller-form and the trans-conformer. The structural geometry is proposed to be capable of minimizing the aggregation related self-quenching effect in the condensed phase. Fluorescence emission wavelength of tris(DPAF-C9) was found to be in a close range to that of PVK that led to its potential uses as the secondary blue hole-transporting material for enhancing the device property toward the modulation of PLED performance. |
| Doi | 10.3390/molecules20034635 |
| Pmid | 25781068 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |