You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: The molecule is a phosphorescent and phosphorescent emitter, belonging to the electroluminescent, organic electronic device, and organic electroluminescent device classes of molecules, and it impacts luminous efficiency.
user
c1ccc2cc(-c3ccc(-n4c5ccccc5c5c6oc7c(ccc8c7c7ccccc7n8-c7ccc(-c8ccc9ccccc9c8)cc7)c6ccc54)cc3)ccc2c1
assistant