Synthesis and efficient energy transfer in a three-chromophore energy gradient of regioregular silylene-spaced divinylarene copolymers

Yen-Ju Cheng, Tien Yau Luh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Regioregular silylene-spaced copolymers 1 composed of an energy gradient with three different chromophores have been achieved by rhodium-catalyzed hydrosilylation of bis-vinylsilanes 3 and bis-alkynes 4. Monomeric reference compounds 2 were prepared for comparison. The ratio of three chromophores is 1:2:1, corresponding to D1, D2, and A chromophores, respectively. The dimethylsilylene (SiMe2) moiety serves as an insulating bridge between chromophores. Upon excitation of the donor chromophore (D1), only emission from the acceptor (A) was observed. Efficient and sequential energy transfer across three different chromophores along the polymeric backbone may proceed smoothly in these silylene-spaced copolymers.

Original languageEnglish
Pages (from-to)4563-4568
Number of pages6
JournalMacromolecules
Volume38
Issue number11
DOIs
StatePublished - 31 May 2005

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