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 both the organic electroluminescent device and electroluminescent classes of molecules. Use the above information to create a molecule.
user
c1ccc(-c2ccc(C3c4ccccc4-c4cc(-c5ccc6c(c5)c5cc7c(cc5n6-c5ccc(-c6ccccc6)cc5)oc5ccccc57)ccc43)cc2)cc1
assistant