Citation: Ke Hong Ding, Xing Ge, Ming Zhang, Si Chun Yuan. Synthesis and characterization of X-shaped oligo (para-phenylene) derivatives functionalized with fluorene ethynylene[J]. Chinese Chemical Letters, ;2010, 21(11): 1374-1377. doi: 10.1016/j.cclet.2010.06.031 shu

Synthesis and characterization of X-shaped oligo (para-phenylene) derivatives functionalized with fluorene ethynylene

a College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, China;
b Department of Fundamental Science, Beijing University of Agriculture, Beijing 102206, China

Received Date: 29 March 2010

Fund Project: We thank Beijing Natural Science Foundation (No.2093033) and Scientific Research Project of Beijing Educational Committee (Nos.KM 200910020012 and KM 201010020002) for financial support.

A series of linear and X-shaped oligo (para-phenylene) derivatives functionalized with fluorene ethynylenes 1, 3 and 4 were synthesized through sequent Sonogashira coupling and Suzuki-Miyaura reaction in high yield. The electron-donating group -OCH₃ and electron-withdrawing counterparts -CF₃ were introduced to tune the spectra properties of compounds 3 and 4. The detail investigation of their photophysical properties in solution and film indicated that the introduction of both-OCH₃ and -CF₃ makes maximum emission distinct red-shift in comparison with parent compound 1, but the latter more prominently.
- Sonogashira coupling,
- Suzuki coupling,
- Oligo (fluorene ethynylene),
- Electronic effect,
- Photophysical property
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