You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a organic light-emitting device. Use the above information to create a molecule.
user
Cc1c(-c2ccc3c(c2)oc2ccccc23)nc(-c2ccc(-c3ccccc3)cc2)nc1-c1cc(-n2c3ccccc3c3cc4ccccc4cc32)c2oc3ccc4ccccc4c3c2c1
assistant