You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a organic light-emitting diode. Use the above information to create a molecule.
user
CC12CCCCC1(C)N(c1ccc(C#N)cc1)c1ccc(-c3ccc4c(c3)-c3ccccc3C43c4ccccc4-c4ccccc43)cc12
assistant