التفاصيل البيبلوغرافية
| العنوان: |
Broadband Visible Light-Absorbing [70]Fullerene-BODIPY-Triphenylamine Triad: Synthesis and Application as Heavy Atom-Free Organic Triplet Photosensitizer for Photooxidation |
| المؤلفون: |
San-E Zhu, Jian-Hui Zhang, Yu Gong, Li-Feng Dou, Li-Hua Mao, Hong-Dian Lu, Chun-Xiang Wei, Hong Chen, Xue-Fei Wang, Wei Yang |
| المصدر: |
Molecules, Vol 26, Iss 5, p 1243 (2021) |
| بيانات النشر: |
MDPI AG, 2021. |
| سنة النشر: |
2021 |
| المجموعة: |
LCC:Organic chemistry |
| مصطلحات موضوعية: |
C70, BODIPY, triphenylamine, triplet photosensitizer, photooxidation, Organic chemistry, QD241-441 |
| الوصف: |
A broadband visible light-absorbing [70]fullerene-BODIPY-triphenylamine triad (C70-B-T) has been synthesized and applied as a heavy atom-free organic triplet photosensitizer for photooxidation. By attaching two triphenylmethyl amine units (TPAs) to the π-core of BODIPY via ethynyl linkers, the absorption range of the antenna is extended to 700 nm with a peak at 600 nm. Thus, the absorption spectrum of C70-B-T almost covers the entire UV–visible region (270–700 nm). The photophysical processes are investigated by means of steady-state and transient spectroscopies. Upon photoexcitation at 339 nm, an efficient energy transfer (ET) from TPA to BODIPY occurs both in C70-B-T and B-T, resulting in the appearance of the BODIPY emission at 664 nm. Direct or indirect (via ET) excitation of the BODIPY-part of C70-B-T is followed by photoinduced ET from the antenna to C70, thus the singlet excited state of C70 (1C70*) is populated. Subsequently, the triplet excited state of C70 (3C70*) is produced via the intrinsic intersystem crossing of C70. The photooxidation ability of C70-B-T was studied using 1,5-dihydroxy naphthalene (DHN) as a chemical sensor. The photooxidation efficiency of C70-B-T is higher than that of the individual components of C70-1 and B-T, and even higher than that of methylene blue (MB). The photooxidation rate constant of C70-B-T is 1.47 and 1.51 times as that of C70-1 and MB, respectively. The results indicate that the C70-antenna systems can be used as another structure motif for a heavy atom-free organic triplet photosensitizer. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
1420-3049 |
| Relation: |
https://www.mdpi.com/1420-3049/26/5/1243; https://doaj.org/toc/1420-3049 |
| DOI: |
10.3390/molecules26051243 |
| URL الوصول: |
https://doaj.org/article/3a7582caf1dd4a9083b8a74ecfd91094 |
| رقم الانضمام: |
edsdoj.3a7582caf1dd4a9083b8a74ecfd91094 |
| قاعدة البيانات: |
Directory of Open Access Journals |
Full Text Finder