You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: The molecule is a organic electroluminescent device, a phosphorescent emitter, a phosphorescent, and electroluminescent.
user
O=c1c2ccccc2c2cccc3c4cc(-c5ccc6c7ccccc7c7ccc(-n8c9ccccc9c9cc%10c(cc98)c8ccccc8n%10-c8ccccc8)cc7c6c5)ccc4n1c23
assistant