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US 2010/0145067 A1Published application
Novel carbazoles derivative and use thereof
OwnerMasami Yokota, Tomoyuki Tusbakiinventors
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Abstract
The invention discloses a novel carbazole derivative which has at least two carbazole structures in the molecule, can form a stable amorphous film by itself at normal temperature or higher, has a high glass transition temperature, and can be suitably used as an organo-electronic functional material. The following compound having the formula is mentioned as a representative example.
Claims4
A carbazole derivative represented by the general formula (I)
- in which R1 is a hydrogen atom, an alkyl group of 1 to 4 carbon atoms, a cycloalkyl group of 5 to 7 carbon atoms, or an aryl group of 6 to 25 carbon atoms, and R2 and R3 are independently an aryl group of 6 to 25 carbon atoms, or any one of first aromatic groups represented by the general formula (II), (III) or (IV)
- in which R4 and R5 are independently a hydrogen atom, an aryl group of 6 to 25 carbon atoms, a diphenylamino group, or a carbazolyl group, and R5 and R7 are independently an aryl group of 6 to 25 carbon atoms, a 9-phenyl-3-carbazolyl group, 4-(9-carbazolyl)phenylene group, or 4-diphenylaminophenyl group, and R8 and R9 are independently an aryl group of 6 to 25 carbon atoms, or any of second aromatic groups represented by the general formula (V), (VI), or (VII)
- and having at least two carbazole structures in the molecule.
Dependencies are inferred from the claim text.