You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Conceptualize a molecule that meets the specified attribute(s): The molecule is a organic electroluminescent device and belongs to both the electroluminescent and high luminous efficiency classes of molecules.
user
c1ccc(-c2ccc3sc4c(-c5ccc6c7c(cccc57)-c5c-6c(-c6ccncc6)c6ccccc6c5-c5ccncc5)c5ccccc5cc4c3c2)cc1
assistant