4.6 Article

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

Journal

SOFT MATTER
Volume 17, Issue 43, Pages 9871-9875

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1sm01165k

Keywords

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Funding

  1. National Natural Science Foundation of China [51804188, 22005179]
  2. Natural Science Foundation of Shandong Province [ZR2020MB018, ZR2020QB113, ZR2018BEE015]

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An artificial light-harvesting system was constructed using PPTA and BSC4 supramolecular polymers, achieving efficient two-step energy transfer processes and promoting the dehalogenation reaction of alpha-bromoacetophenone with a high yield in aqueous solution.
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 alpha-bromoacetophenone with a yield of 89% in aqueous solution.

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