You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a organic electroluminescent element and is electroluminescent. Please represent the molecule in SMILES.
user
O=P(c1ccc2c(c1)c1ccccc1n2-c1ccccc1)(c1ccc2c(c1)c1ccccc1n2-c1ccccc1)c1cc2c3ccccc3c3ccccc3c2c2ccccc12
assistant