You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a organic light-emitting device.
user
CC1(C)c2ccccc2-c2cc3c4c(c5c(cc4c21)c1ccccc1n5-c1ccc2cc(P(=O)(c4ccccc4)c4ccccc4)ccc2c1)C=CC3
assistant