You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Give me a molecule that satisfies the conditions outlined in the description: The molecule is light-emitting.
user
c1ccc2c(c1)sc1c(-c3ccc4[nH]c5ccc(-c6ccc7c(c6)CCCC7)cc5c4c3)cccc12
assistant