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 phosphorescent and electroluminescent, and it has an effect on organic electroluminescence. Use the above information to create a molecule.
user
c1ccc(-c2ccc(-c3nc(-n4c5ccc6c7ccccc7oc6c5c5c6c7ccccc7n(-c7ccc(-c8ccccc8)cc7)c6ccc54)nc4ccccc34)cc2)cc1
assistant