You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is organic light-emitting. Use the above information to create a molecule.
user
CN1c2ccccc2C(c2ccccc2)(c2ccccc2)c2cccc(-c3cccc4c(-c5cccc6c5-c5ccccc5C65c6ccccc6-c6ccc7ccccc7c65)c5cccc(-c6cccc7c6N(C)c6ccccc6C7(c6ccccc6)c6ccccc6)c5cc34)c21
assistant