You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a organic light-emitting member of the light-emitting class. Please write the SMILES representation of it.
user
Cc1ccc2c(c1)C(C)(C)c1cc(-c3nc(-c4ccc(-c5ccccc5)cc4)nc(-c4ccc(-c5cccc(Cc6ccc(-c7cccc8cccnc78)cc6)c5)cc4)n3)ccc1-2
assistant