Spirofluorene derivative, material for light-emitting element, light-emitting element, light-emitting device, and electronic device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsSachiko Kawakami, Harue Nakashima
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Abstract
It is an object of the present invention to provide a material having a high Tg and a wide energy gap. The present invention provides a spirofluorene derivative represented by General Formula 1. (In the formula, R1 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or a group represented by General Formula 2. Each of R2 and R3 is either hydrogen or an alkyl group having 1 to 4 carbon atoms and may be identical or different. R4 is an aryl group having 6 to 15 carbon atoms. Each of R5 and R6 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 15 carbon atoms and may be identical or different.)
Claims14
A spirofluorene derivative represented by General Formula 3,
- wherein R7 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms and a group represented by General Formula 4;
- wherein each of R8 and R9 is any one of hydrogen and alkyl group having 1 to 4 carbon atoms, and is identical or different;
- wherein R10 is an aryl group having 6 to 15 carbon atoms;
- and
- wherein each of R11 and R12 is any one of hydrogen, an alkyl group having 1 to 4 carbon atoms and an aryl group having 6 to 15 carbon atoms, and is identical or different
A spirofluorene derivative represented by Structural Formula 26;
A spirofluorene derivative represented by Structural Formula 29;
Dependencies are inferred from the claim text.