1351165-70-2Relevant academic research and scientific papers
Synthesis and properties of anthrylene-substituted phenyleneethynylene dyes having amino/cyano group(s) and their application to dye-sensitized solar cells
Yang, Xin,Kajiyama, Shingo,Fang, Jing-Kun,Xu, Feng,Uemura, Yu,Koumura, Nagatoshi,Hara, Kohjiro,Orita, Akihiro,Otera, Junzo
, p. 687 - 697 (2012/07/30)
A series of anthrylene-substituted phenyleneethynylene dyes having amino/cyano group(s) were prepared by repeating Sonogashira coupling between aryl halides and terminal acetylenes. In UVvis absorption spectra, the 9,10-anthrylene-substituted dyes showed a strong absorption band of which λmax was located from 502 to 521 nm and ε was more than 5.2 × 104L mol-1 cm-1 indicating a highly expanded π-system in comparison with 1,5-anthrylene dye (λmax = 431 nm, ε= 2.6 × 104L mol-1 cm-1). LippertMataga plots demonstrated that the amino- and cyano-substituted dyes underwent larger charge separation in the excited states. These acetylenic dyes served as sensitizers of dye-sensitized solar cell to achieve 5.0% of photo-to-current energy conversion efficiency.
Ph(O) group for protection of terminal acetylenes
Yang, Xin,Matsuo, Daisuke,Suzuma, Yoshinori,Fang, Jing-Kun,Xu, Feng,Orita, Akihiro,Otera, Junzo,Kajiyama, Shingo,Koumura, Nagatoshi,Hara, Kohjiro
, p. 2402 - 2406 (2011/11/05)
A protecting group Ph(O) for terminal ethyne was newly developed. This protecting group can be introduced readily to terminal ethyne by CuI-catalyzed phosphination and subsequent oxidation with H Ph(O)-protected ethynes remained intact in Sonogashira coup
