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|
| Type |
Poster Presentation |
| Area |
Industrial Chemistry |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 20일 (금요일) 13:00~14:30 |
| Code |
IND.P-71 |
| Subject |
Spectroscopic study on the phosphorescence of Pt-complexes |
| Authors |
Mi Rang Son, Pil Soo Kim, DAE WON CHO, Sang Ook Kang, Ho-Jin Son*
Department of Advanced Materials Chemistry, Korea University, Korea
|
| Abstract |
In order to understand the relation between the narrowing of emission band and structural changes, we synthesised tetradentate Pt-complexes; Pt-1 has directly connected two carbazole (Cz) moieties, Pt-2 has additional two methyl groups to Pt-1, and Pt-3 is one Cz moiety. The absorption and emission spectra of Pt-1 are identical with those of Pt-2. The emission of Pt-3 observed at shorter wavelength compared to others. The 0-0 vibronic band of all Pt-complexes was quite intense compared to the 0-1 vibronic band, which may due to the restricted structure of tetradentate ligand. The spacing of 0-0 and 1-0 vibronic bands are 1487 and ~1323 cm-1. To determine the cause of this spacing, we have carried out the theoretical study using the DFT calculation and the analysis of IR-spectra. Also, we have carried out transient Raman experiment to get the vibronic informations of excited Pt-1. We achieved the narrow-band emission from Pt-complexes using tetradentate ligand, and we have evaluated the origin of shoulder vibration band in emission spectra. |
| E-mail |
kimpilsoo@korea.ac.kr |
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120th General Meeting of the KCS