You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a organic light-emitting diode.
user
CC12CCCCC1(C)c1cc(-c3ccc4c5c(-c6ccccc6)c6c7cccc8cccc(c6c(-c6ccccc6)c5c5cccc3c54)c87)ccc1O2
assistant