Alkyne‐Linked Poly(1,8‐carbazole)s: A Novel Class of Conjugated Carbazole Polymers
2007; Wiley; Volume: 29; Issue: 2 Linguagem: Inglês
10.1002/marc.200700715
ISSN1521-3927
AutoresTsuyoshi Michinobu, Haruka Osako, Kiyotaka Shigehara,
Tópico(s)Perovskite Materials and Applications
ResumoAbstract Novel conjugated carbazole polymers based on the alkyne‐linked 1,8‐carbazole structure are synthesized in high yield by the Sonogashira cross‐coupling reaction and acetylenic oxidative coupling reaction. The polymers are thermally stable and highly soluble in common organic solvents such as CHCl 3 , CH 2 Cl 2 , and THF. As compared to ethynylene‐linked polymer, the butadiynylene‐linked polymer display a bathochromic shift in the absorption maximum and end absorption position. In addition, the fluorescence behaviors in CH 2 Cl 2 are almost identical for both polymers. Electrochemical measurements indicate that the ethynylene‐linked polymer possesses a lower first oxidation potential than the butadiynylene‐linked one. magnified image
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