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 electroluminescent compound and belongs to the high luminous efficiency class of molecules, with the characteristic of being electroluminescent. Use the above information to create a molecule.
user
c1ccc(-c2ccc(-c3cc(-c4cc(-c5ccc6c7ccccc7n(-c7ccccc7)c6c5)cc(-c5ccc6c7ccccc7n(-c7ccccc7)c6c5)c4)nc(-c4cccs4)n3)cc2)cc1
assistant