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Star‐Shaped Light‐Harvesting Polymers Incorporating an Energy Cascade
Author(s) -
Chen Ming,
Ghiggino Kenneth P.,
Thang San H.,
Wilson Gerard J.
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200462796
Subject(s) - copolymer , chromophore , cascade , chain transfer , polymer , energy transfer , excitation , raft , excited state , polymerization , photochemistry , materials science , reversible addition−fragmentation chain transfer polymerization , star (game theory) , fragmentation (computing) , energy transport , chemical physics , core (optical fiber) , chemistry , physics , radical polymerization , atomic physics , computer science , astrophysics , composite material , engineering physics , chromatography , quantum mechanics , operating system
A star in the making : Star‐shaped block copolymers have been synthesized by reversible addition–fragmentation chain‐transfer (RAFT) polymerization to obtain light‐harvesting systems with an energy gradient from the periphery to the core. Excitation‐energy transfer in the block copolymers occurs through an energy cascade from the excited acenaphthenyl units to the coumarin chromophores and hence to the Ru II complex core (red sphere: see picture).