| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Direct observation of the photoinduced electron transfer processes of bis(4-arylphenylamino benzo)-ortho-carborane using transient absorption spectroscopic measurements |
| 초록 |
The intramolecular photoinduced electron transfer (PET) processes of three bis(4-arylphenylamino benzo)-ortho-carboranes (ArCbAr, Ar = phenyl (Ph), naphthyl (Np) and pyrenyl (Py)) triads were investigated in CH2Cl2 and n-hexane using the femtosecond time-resolved transient absorption (TA) spectroscopic technique. In CH2Cl2, the transient S1-Sn absorption band of 1ArCbAr* was observed at short delay times. Concomitant with the decay of 1ArCbAr*, the TA bands for cation radical species were detected at around 700 nm for Ph•+, 650 nm for Np•+, and 580 nm Py•+. At the same time, the TA band of the carborane anion radical (Cb•-) was observed at around 430 nm. This implies that the intramolecular PET process occurs from the 1ArCbAr* state. The TA bands of the cationic and anionic radical species can be assigned by comparison to the absorption spectra of an electrochemically generated radical species. |
| 저자 |
박재현, 손미랑, 조양진, 김소연, 조대원, 김철훈, 강상욱, 손호진
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| 소속 |
고려대 |
| 키워드 |
carborane |
| E-Mail |
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