Details

Autor(en) / Beteiligte

• Li, Xing-Long
• Wang, Ying
• Song, Ao
• Zhang, Ming-Hui
• Jiang, Man
• Liu, Hui
• Wang, Rongzhou
• Yu, Shengsheng
• Xing, Ling-Bao

Titel

The construction of an artificial light-harvesting system with two-step sequential energy transfer based on supramolecular polymers

Ist Teil von

• Soft matter, 2021-11, Vol.17 (43), p.9871-9875

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• An artificial light-harvesting system with two-step sequential energy transfer was constructed in aqueous media based on cyano-substituted p -phenylenevinylene derivative (PPTA) and bis-( p -sulfonatocalix[4]arenes) (BSC4) supramolecular polymers formed through host-guest interactions, in which two different fluorescent dyes, eosin Y (EY) and sulforhodamine (SR101), were employed as energy acceptors. The obtained artificial light-harvesting system can achieve an efficient two-step energy transfer process from PPTA-BSC4 to EY and then to SR101 with high energy-transfer efficiencies of up to 36.6% and 40.8%, respectively. More importantly, the harvested energy from the PPTA-BSC4 + EY + SR101 system can be used to promote the dehalogenation of α-bromoacetophenone with a yield of 89% in aqueous solution. An artificial light-harvesting system with two-step sequential energy transfer has been constructed based on supramolecular polymers through host-guest interactions, which can be used for photocatalytic dehalogenation of α-bromoacetophenone.