摘要:
This invention includes a compound represented by the chemical formula 1 below.
[Chemical Formula 1]
In the chemical formula 1, R, R, R, and R independently represent *-L-Z, hydrogen, aryl group with 6 to 60 carbon atoms, heteroaryl group with 2 to 60 carbon atoms, alkyl group with 2 to 60 carbon atoms, or alkenyl group with 2 to 60 carbon atoms. However, at least one of R, R, R, and R represents *-L-Z, and Z represents hydrogen, the chemical formula 2 below, or the chemical formula 3 below.
[Chemical Formula 2]
[Chemical Formula 3]