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 organic light-emitting device.
user
C=C1C=CC(C)C(c2c(O)cccc2-c2nc(-c3ccccc3)nc(-c3cccc4c5ccccc5n(-c5ccccc5)c34)n2)CC=C1n1c2cc3ccccc3cc2c2c3ccccc3ccc21
assistant