2019年5月
Carbon-bridged Oligo(phenylenevinylene)s as Light-harvesting Antenna for Porphyrins
CHEMISTRY-AN ASIAN JOURNAL
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- 巻
- 14
- 号
- 10
- 開始ページ
- 1672
- 終了ページ
- 1675
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/asia.201801715
- 出版者・発行元
- WILEY-V C H VERLAG GMBH
The efficacy of carbon-bridged oligo(phenylenevinylenes)s (COPVs) as light-harvesting antenna for porphyrins is demonstrated using a series of 5,15-di-COPVn-substituted free-base and zinc porphyrins, COPVn-MP-COPVn (n=1-3, M=H-2, Zn). These molecules were synthesized by Suzuki-Miyaura cross-coupling reactions of COPVn-Bpin and Br-H2P-Br. The absorption spectra of these compounds in solution show a significant expansion of the Soret band region together with a bathochromic shift of the Q band, suggesting a significant interaction between these chromophores in the ground state. The photoluminescence quantum yield of the porphyrin-COPV conjugates is enhanced up to four times relative to the parent porphyrins. Theoretical calculations also indicated interactions between these chromophores in the HOMO, which suggests that the light-harvesting ability stems from the expansion of the -electron-conjugation system.
- リンク情報
- ID情報
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- DOI : 10.1002/asia.201801715
- ISSN : 1861-4728
- eISSN : 1861-471X
- Web of Science ID : WOS:000471307500011