You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is a organic light-emitting device and belongs to the light-emitting class of molecules, impacting improved driving voltage and is characterized as organic light-emitting.
user
c1ccc(-c2ccc(-c3nc(-c4ccccc4)nc(-c4cccc5oc6c(-c7cccc8oc9ccccc9c78)cc(-c7cccc8oc9ccccc9c78)cc6c45)n3)cc2)cc1
assistant