You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: It belongs to the high luminous efficiency class of molecules.
user
c1ccc(-c2cc(-c3cccc(-c4ccc5c(c4)C4(c6ccccc6-c6ccccc64)c4cc(-c6cccc(-c7cc(-c8ccccc8)nc(-c8ccccc8)c7)c6)ccc4-5)c3)cc(-c3ccccc3)n2)cc1
assistant