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 light-emitting device and is organic light-emitting.
user
c1ccc(-c2cccc(-c3nc(-c4ccccc4)nc(-c4cccc(-c5nc6ccccc6c6c(-c7ccccc7)c7c(cc56)oc5ccccc57)c4)n3)c2)cc1
assistant