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: It belongs to the organic light-emitting class of molecules. Please write the SMILES representation of it.
user
c1ccc2cc(-c3nc(-n4c5ccccc5c5cc6c7ccccc7n7c8ccc9ccccc9c8c(c54)c67)nc4c3sc3ccccc34)ccc2c1
assistant