You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: It belongs to both the electroluminescent and organic electroluminescent compound classes of molecules.
user
O=P1(c2ccccc2)c2ccccc2-c2ccc3c4ccccc4n(-c4nc(-c5ccc(-c6cccc7ccccc67)cc5)c5ccccc5n4)c3c21
assistant