BLUE-EMITTING COMPOUNDS, BLUE-EMITTING FLUOROALKYLATED STILBENES, AND LIGHT EMITTING DEVICES

摘要

The invention provides blue-emitting compounds which emit blue light at high color purity and high brightness and exhibit high fastness, and light emitting devices capable of emitting light at high brightness, namely, blue-emitting compounds represented by the general formula (1) or (31) and light-emitting devices containing the compounds in the light-emitting layer: (1) (wherein Ar is an aromatic group; Ar1 is hydrogen or an aromatic substituent; and when Ar1 is hydrogen, Ar2 is an aromatic substituent, while when Ar1 is an aromatic substituent, Ar2 is hydrogen or an aromatic substituent) (31) (wherein Ar is an aromatic group; Y is fluoroalkyl having 1 to 3 carbon atoms; and n is a positive number of 1 to 3; Y is attached to the position ortho or papa to -CZ; Ys on one benzene ring may be the same or different and Ys on the two benzene rings may be the same or different; and Z is hydrogen or a specific fluoroalkylated aromatic group).