You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is a organic electroluminescent device and is electroluminescent.
user
Fc1ccc2c(-c3cccc([Si](c4ccccc4)(c4ccccc4)c4ccccc4)c3)c3ccccc3c(-c3cccc([Si](c4ccccc4)(c4ccccc4)c4ccccc4)c3)c2c1
assistant