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 based on this description: It belongs to the organic light-emitting, electroluminescent device, and electroluminescent classes of molecules.
user
c1ccc2c(c1)CC(c1cc(-c3ccc(N(c4ccc5ccccc5c4)c4ccc5c(c4)sc4ccccc45)cc3)c3sc4ccccc4c3c1)c1ccccc1-2
assistant