You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The organic light-emitting molecule has an effect on light-emitting device. Use the above information to create a molecule.
user
c1ccc(-c2ccnc(-c3ccc(C4(c5ccc(-c6nc(-c7ccccc7)cc(-c7ccccc7)n6)cc5)CCCCC4)cc3)n2)cc1
assistant