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 light-emitting device and is organic light-emitting. Please write the SMILES representation of it.
user
c1ccc(-c2nc(-c3ccccc3)nc(-c3ccc(-n4c5ccccc5c5c(-c6ccc7c8ccccc8n(-c8ccccc8)c7c6)cc6c7ccccc7oc6c54)cc3)n2)cc1
assistant