You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
It belongs to the organic electroluminescent material, electronic device, and electroluminescent classes of molecules. Use the above information to create a molecule.
user
C=C1C=CC=CCC(C)(C)c2c3c(c4c5ccccc5n(-c5nc(-c6ccccc6)nc(-c6ccc(C#N)cc6)n5)c4c21)-c1ccccc1C3(C)C
assistant