You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a organic light-emitting device and belongs to the fluorescent class of molecules, known to have an effect on delayed fluorescence.
user
c1ccc(-c2ccc3nc4n(-c5c(-c6ccccc6)cc(-c6nc(-c7ccccc7)cc(-c7ccccc7)n6)cc5-c5ccccc5)c5ccc(-c6ccccc6)cc5n4c3c2)cc1
assistant