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 that fulfills the requirement: The molecule is a phosphorescent member of the fluorescent class.
user
CC1(C)c2ccccc2Oc2c1c1ccccc1c1c3ccccc3n(-c3nc(-c4ccc(-c5ccccc5)cc4)nc(-c4ccc(-c5ccccc5)cc4)n3)c21
assistant