You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The organic light-emitting molecule has an effect on light-emitting device. Use the above information to create a molecule.
user
CCC1C(c2ccc(Cl)c3c2sc2ccccc23)=NC(c2cccc3sc4ccccc4c23)=NC1c1cccc2sc3ccccc3c12
assistant