You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is a organic electroluminescent device and belongs to both the electroluminescent and light-emitting classes of molecules.
user
c1ccc(-c2cccc(-n3ccc4cc5c(cc43)C(c3ccccc3)c3ccccc3-5)n2)cc1
assistant