You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a organic electroluminescent material and is classified both as a electroluminescent and organic electroluminescent, with an impact on delayed fluorescence. Please represent the molecule in SMILES.
user
c1ccc(-c2nc(-c3ccccc3)nc(-c3cccc(-c4cccc(-n5c6ccccc6c6cc(-c7cccc8c7oc7c8ccc8c9ccccc9oc87)ccc65)c4)c3)n2)cc1
assistant