You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a organic light-emitting device.
user
N#Cc1ccc(-c2nc3cc(C#N)c4c5ccccc5nc(-c5ccccc5C#N)c4c3nc2-c2ccc(C#N)cc2)cc1
assistant