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 light-emitting device and belongs to the delayed fluorescence class of molecules, with the characteristic of being fluorescent. Please represent the molecule in SMILES.
user
c1ccc(-c2ccc3c4cc(-n5c6ccccc6c6ccccc65)ccc4n(-c4c(-c5ccccc5)cc(-c5nc(-c6ccccc6)nc(-c6ccccc6)n5)cc4-c4ccccc4)c3c2)cc1
assistant