You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a light-emitting device and is organic light-emitting.
user
C=C(C)C=CC(=CC)C1(c2ccc(C)cc2)c2ccccc2-c2c(I)cccc21
assistant